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Caterina Vernieri (SLAC), Stephen Streiffer15/05/2023, 08:25
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Shinichiro Michizono (KEK)15/05/2023, 08:40
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Sergey Belomestnykh (Fermilab)15/05/2023, 09:00
Over the last several years a significant progress was made in developing accelerator technology for future lepton linear colliders. In this talk I review recent progress in high-gradient normal conducting and superconducting RF structures and some other recent technological advances.
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Steinar Stapnes (CERN)15/05/2023, 09:20
Status and Plans for CLIC Studies
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Brian Foster (University of Oxford)15/05/2023, 09:40
The construction of an electron-positron collider "Higgs factory" has been stalled for a decade,
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not because of feasibility but because of the cost of conventional radio-frequency (RF) acceleration.
Plasma-wakefield acceleration promises to alleviate this problem via significant cost reduction based
on its orders-of-magnitude higher accelerating gradients. However, plasma-based acceleration... -
15/05/2023, 10:00
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Caterina Vernieri (SLAC)15/05/2023, 10:45
A program to build a lepton-collider Higgs factory, to precisely measure the couplings of the Higgs boson to other particles, followed by a higher energy run to establish the Higgs self-coupling and expand the new physics reach, is widely recognized as a primary focus of modern particle physics. We propose a strategy that focuses on a new technology and preliminary estimates suggest that can...
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Jinlong Zhang15/05/2023, 11:05
Overview of recent developments in detector concept studies.
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Adrian Irles (IFIC (CSIC/UV))15/05/2023, 11:25
This contribution will summarise the status and R&D challenges of the calorimetry concepts to meet the high performance requirements of future Higgs Factories.
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Ariel Schwartzman (SLAC)15/05/2023, 11:45
Fast Timing in Higgs Factory Detectors
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Nathaniel Craig (UC Santa Barbara)15/05/2023, 13:30
Physics Case for Precision Measurements at a Higgs Factory
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Maxim Perelstein15/05/2023, 13:50
Physics Case for e+e- collisions at High Energy
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Yasuhito Sakaki (KEK)15/05/2023, 14:10
Beyond-collider physics opportunities at a Linear Facility
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Caterina Vernieri (SLAC), Jens Osterhoff (DESY), Michael Peskin (SLAC), Shoji Asai, Steinar Stapnes (CERN)15/05/2023, 14:30
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Tianhuan Luo15/05/2023, 15:30
Muon Collider and synergies with LC.
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Ye Jingbo15/05/2023, 15:50
Circular Electron-Position Collider and the detector on it are the proposed Higgs factor in China. It will produce Higgs, Z and W bosons, and top quarks, for precision measurements and searches of new physics beyond the Standard Model. I will report, on behalf of the CEPC study group, about the progresses and results of the studies in the physics programs, R&Ds for the accelerator and the...
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Tatsuya Nakada (EPFL)15/05/2023, 16:10
IDT Report
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Shoji Asai (U-Tokyo)15/05/2023, 16:30
In this talk I summarize the Promotion status of ILC in Japan.
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1) Japanese HEP community makes promotion scheme, ILC-Japan.
2) We have tight collaboration with IDT.
3) KEK just starts the international R&D framework, ILC technology network
4) I also show our expected timeline. -
Ankur Dhar (SLAC), Annika Gabriel (SLAC), Brendon Madison (University of Kansas), Dimitris Ntounis (SLAC), Emma Snively (SLAC), Haoran Xu (Los Alamos National Laboratory), Jan Klamka (University of Warsaw), Jesús Pedro Márquez Hernández (IFIC (CSIC/UV)), Mitch Schneider (SLAC), Mohamed Othman (SLAC), Rafi Hessami (SLAC), Spencer Gessner (SLAC), Wei-Hou Tan (SLAC)15/05/2023, 18:00
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Emilio Nanni (SLAC)16/05/2023, 08:30
In this talk we will present the C3 - Cool Copper Collider - accelerator complex design and the R&D Demonstration that is needed.
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Taikan Suehara (Kyushu University)16/05/2023, 08:30
PID Capabilities
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Maximilian Swiatlowski (TRIUMF)16/05/2023, 08:50
A muon collider presents an exciting and affordable medium-term possibility for a TeV-scale collider to explore the energy frontier, enabling a physics program would be extremely complementary to precision e+/e- Higgs factories. While detectors at a muon collider would face unique challenges due to the extreme backgrounds arising from beam decays in-flight, there are many complementary...
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Angeles Faus Golfe (IJCLab)16/05/2023, 08:50
Status and future programme for LC studies at ATF3.
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Didier Contardo (IP2I CNRS/IN2P3)16/05/2023, 09:10
ECFA Detector R&D: Roadmap + International Context
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Steffen Doebert (CERN)16/05/2023, 09:10
X-band technology developments and use in small medical, industrial and research linacs.
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Jens Osterhoff (DESY)16/05/2023, 09:30
The development of advanced acceleration techniques has been rapid over the last decade. Nowadays, acceleration concepts based on plasmas have not only demonstrated field strengths in the multi-GV/m regime enabling ultracompact high-energy machines, but have also made strides in terms of short- and long-term stability and control aided by novel machine learning algorithms, and demonstrated the...
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Aidan Robson (University of Glasgow)16/05/2023, 09:30
ECFA Higgs Factory Study
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Keita Yumino (KEK / SOKENDAI)16/05/2023, 10:30
Two fermion production at the International Linear Collider (ILC) allows sensitive searches for new physics, such as heavy gauge bosons Z′. Combining the ILC's polarized beams with measurement of the tau lepton polarization allow detailed probes of the chirality of new interactions beyond the Standard Model.
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The tau polarization can be extracted by measuring the distribution of tau decay... -
Inês Ochoa (LIP Portugal)16/05/2023, 10:30
Many theories beyond the Standard Model (BSM) have been proposed to address several of the Standard Model shortcomings, such as the origin of dark matter and neutrino masses, the fine-tuning of the Higgs Boson mass, or the observed pattern of masses and mixing angles in the quark and lepton sectors. Many of these BSM extensions predict new particles or interactions directly accessible at the...
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Yasuchika Yamamoto (KEK)16/05/2023, 10:30
KEK is starting the 5-year plan related to SRF for ILC. The main goal is the production and evaluation of prototype cryomodule including cavities with high-Q/high-G, input power couplers, frequency tuners, magnetic shields, superconducting quadrupole magnet and cold BPM, etc. Since the ILC is a global project, this five-year plan also has to be carried out under global collaboration. KEK...
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Jared Maxson (Cornell University)16/05/2023, 10:30
Superlattice-strained negative electron affinity GaAs photocathodes can produce electron beam polarization in excess of 90%, and if appropriately layered, quantum efficiencies of multiple percent. As such is the go-to source for polarized photoinjector applications and is the planned source for multiple future collider designs. However, it achieves negative electron affinity by virtue of a...
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Dr Takeyoshi Goto (High Energy Accelerator Research Organization (KEK))16/05/2023, 10:45
Installation of a vertical electropolishing (VEP) system for surface treatment of Nb cavities was just completed at KEK and started the test operation in December 2022. Although the horizontal EP (HEP) system has already been in operation for nearly 15 years at KEK, VEP system was adopted to process 9-cell Nb cavities, because of the simpler operational processes and the higher work safety. We...
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Jan Klamka (University of Warsaw)16/05/2023, 10:45Track 2: Analysis and ReconstructionEarly Career (Eligible for Oral or Poster)
In recent years, long-lived particles (LLPs) have been widely considered in a variety of Beyond the Standard Model (BSM) scenarios and in many different experimental searches for new particles. Future e$^+$e$^-$ colliders, thanks to their clean environment and triggerless operation, offer a unique opportunity to search for such states at sub-TeV energies. Considered in this contribution are...
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Adrian Irles (IFIC (CSIC/UV))16/05/2023, 10:48
The proposed LUXE experiment (LASER Und XFEL Experiment) at DESY, Hamburg, using the 16.5 GeV electron beam from the European XFEL, aims to probe QED in the non-perturbative regime created in collisions between high-intensity laser pulses and high-energy electron or photon beams. In this strong-field regime, where the electromagnetic field of the laser is above the Schwinger limit, physical...
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Carlos Hernandez-Garcia (Jefferson Lab)16/05/2023, 10:50
During the ILC Global Design Effort (2007) two 200 kV high voltage photoguns based on an inverted insulator geometry were developed in 2010 and successfully tested at Jefferson Lab (JLab). One of the photoguns has been operated at 130 kV in the CEBAF accelerator for the JLab nuclear physics program. The inverted insulator replaces the electrode support structure, consequently significantly...
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Brendon Madison (University of Kansas)16/05/2023, 11:00Track 2: Analysis and ReconstructionEarly Career (Eligible for Oral or Poster)
Energy precision at the International Linear Collider (ILC) at 250 GeV is evaluated. To do so two difermion final states of $\mu^+\mu^-$ (dimuon), and $e^+e^-$ (Bhabha) are used. Beam dynamics are simulated using GuineaPig++ and event generation by KKMC for dimuons and BHWIDE for Bhabhas. A new Monte Carlo, GP2X, is written to convolve the beam dynamics with event generator output. The...
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Fabien EOZENOU (CEA Saclay IRFU/DACM)16/05/2023, 11:00
Today, Superconducting Radio Frequency technology is based on bulk niobium and is now reaching its intrinsic limitation. Increasing the performance of SRF cavities while reducing manufacturing and operating costs poses real technological challenges. At CEA, we pursue a multiscale material functionalization approach compatible with mass production without performance degradation. The first...
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Gudrid Moortgat-Pick, Sabine Riemann (DESY), Peter Sievers (CERN)16/05/2023, 11:00
The undulator-based positron source offers even polarized longitudinally as well as transversely polarized beams.
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Both cases are very substantial for matching the promised physics and precision goals.
An overview will be given about the baseline undulator source set-up and technical open issues will be addressed.
Recent progress on the field simulations, the rotating wheel design, the... -
Krzysztof Mekala (University of Warsaw / DESY)16/05/2023, 11:06
Neutrinos are the most elusive particles known. Heavier sterile neutrinos mixing with the Standard Model partners might solve the mystery of the baryon asymmetry of the universe and take part in the mass generation mechanism for the light neutrinos. From this perspective, if the heavy neutrinos are detected, it is crucial to determine their coupling structure. Future lepton colliders would not...
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Uli Einhaus (DESY)16/05/2023, 11:15
The particle physics community has concluded that the next collider should be an e+e− Higgs factory. Such a collider would also enable many other precision measurements, e.g. of the top quark and in the electroweak sector, as well as searches for exotic particles. In the ongoing discussions it has become increasingly clear that particle identification including charged hadron ID is a key...
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Daniel Bafia (Fermilab)16/05/2023, 11:15
This talk will discuss Fermilab’s recent progress in the surface engineering of superconducting radio-frequency (SRF) cavities geared toward producing simultaneously high quality factors and high accelerating gradients in cryomodules. We investigate possible microscopic mechanisms that drive improved performance by carrying out sequential RF tests on cavities subjected to a variety of surface...
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Carmen Tenholt (DESY), Gregor Loisch (DESY)16/05/2023, 11:20
The performance of positron source in the International Linear Collider (ILC) is critical for the luminosity and therefore the physics output of this planned, future high energy physics machine. In the undulator-based source proposed for the ILC, positrons are produced by generation of electron-positron pairs by an incident high energy photon on a high-Z target material. The amount of positron...
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Sridhara Dasu (University of Wisconsin - Madison)16/05/2023, 11:24
Intriguing scenarios of new physics provide explanation to several shortcomings of the Standard Model. Such models as extra dimensions, supersymmetric theories or dark sector extensions, are expected to manifest in various topologies including hadronic and leptonic final states. In this talk, we focus on the recent results obtained using the full Run-II dataset collected at the LHC and...
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Andriy Ushakov (Jefferson Lab)16/05/2023, 11:30
The progress in the development of a polarized positron injector for the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Laboratory is presented. The polarized positron beam is generated by a high current polarized electron beam (>1 mA @ 120 MeV) via bremsstrahlung radiation and e+e- pair production in the tungsten target. The simulations show that using an optimized target...
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Akira Yamamoto (KEK and CERN)16/05/2023, 11:30
It has been a fundamental requirement to realize high-performance superconducting RF cavities with highly cos-effective production. New, medium grain (MG) niobium (Nb) material and clean disc production has been realized with a cos-effective production process with (i) forging pure Nb ingot, (ii) annealing, and (ii) direct slicing. It has provided very clean surface, without rolling process...
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Vyacheslav Yakovlev (Fermilab)16/05/2023, 11:45
Utilization of a Superconducting Travelling Wave Acceleration (STWA) structure with small phase advance per cell for future high energy linear colliders such as ILCs may provide an accelerating gradient 1.2–1.4 times larger than a standing wave structure. In the present paper, the status of development of high gradient STWA for collider application is presented.
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Sami Habet (IJCLab/JLab)16/05/2023, 11:50
This contribution describes optimized layouts of a positron injector anticipated for generating polarized and unpolarized positron beams for the CEBAF accelerator at the Thomas Jefferson National Accelerator Facility (JLab). This injector should provide polarized beams (>60%) with intensity >50 nA, or higher intensity “unpolarized” beam with intensity >3 uA.
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The layouts of the positron... -
Maxim Titov (CEA Saclay, Irfu)16/05/2023, 13:00
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Tohru Takahashi (Hiroshima University)16/05/2023, 13:15
The Advanced Accelerator Association Promoting Science & Technology (AAA) is a general incorporated association aimed at promoting accelerator science by fostering collaboration among academia, government, and industry. The primary focus of the AAA is the International Linear Collider, and the organization is actively involved in project promotion, technical liaison, and public relations to...
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Shuzhou Zhang (University of Michigan)16/05/2023, 13:31
In the Standard Model, the ground state of the Higgs field is not found at zero but instead corresponds to one of the degenerate solutions minimising the Higgs potential. In turn, this spontaneous electroweak symmetry breaking provides a mechanism for the mass generation of nearly all fundamental particles. The Standard Model makes a definite prediction for the Higgs boson self-coupling and...
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Camille Ginsburg (US-DOE ARDAP Office)16/05/2023, 13:35
Particle accelerators are the fundamental tools enabling discovery science at many of the Department of Energy (DOE) Office of Science (SC) facilities, supporting roughly 20,000 users per year in the areas of Basic Energy Sciences, Fusion Energy Sciences, High Energy Physics, and Nuclear Physics. Accelerators are also used by the DOE Isotope Program to develop and produce radioactive and...
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23. Probing CPV mixing in the Higgs sector at an e+e- collider at around 1 TeV center-of-mass energyMrs Natasa Vukasinovic (VINCA Institute of Nuclear Sciences, Uni. Belgrade)16/05/2023, 13:50
Abstract: Although the studies of tensor structure of the Higgs boson interactions with vector bosons and fermions at CMS and ATLAS experiments have established that the JPC quantum numbers of the Higgs boson should be 0++, small CP violation in the Higgs sector (i.e. app. 10% contribution of the CP-odd state) cannot be excluded with the current experimental precision. We review possibilities...
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Erik Fernandez (INEUSTAR, Spain)16/05/2023, 13:55
Spanish Science Industry is developing technology, components systems and subsystems for particle accelerators world wide. The relationship of the industry with the scientific and technological institutes in Spain makes possible the advance of critical technologies that will be applied in the future accelerators as the International Linear Collider. During the presentation, key characteristics...
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Julie Torndal (DESY)16/05/2023, 14:10
The Higgs sector of particle physics is still largely uncovered, where establishing the Higgs mechanism is central to advance the field. The Higgs self-coupling is the key ingredient missing and an important puzzle piece for potentially uncovering new physics beyond the standard model.
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With the energy reach and precision reach of linear $e^+e^-$ colliders, the Higgs self-coupling can be... -
Alex Murokh (RadiaBeam Technologies, LLC.)16/05/2023, 14:15
RadiaBeam is a small business providing systems, components, instrumentation, as well as testing, consulting and engineering services to the industrial and scientific accelerator communities. In this paper we’ll discuss the projects most relevant to the high energy physics community with the emphasis on a recent development of the in-house C-band infrastructure for accelerator R&D. We’ll also...
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Ulascan Sarica (UC Santa Barbara), Ulascan Sarica (University of California, Santa Barbara)16/05/2023, 14:30
We present highlights of CMS measurements and searches in the area of Higgs physics, as well as prospects for the HL-LHC era.
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Masahiko Kondo (Kondo Equipment Corporation, Japan)16/05/2023, 14:35
We have participated in the R&D work for an electron-driven positron source ordered by KEK and awarded by the Iwate Industrial Promotion Center, and oversaw one part of the work. We worked on this project in collaboration with industry, government, and academia, and we oversaw the design, manufacturing, installation, and operation of the cooling water system. Two companies in Iwate Prefecture...
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Ryo Takahashi (Akita Chemical Industry Co., Ltd, Japan)16/05/2023, 14:45
Nb3Sn is a material with about twice the superheating field and superconducting transition temperature of Nb. By forming an Nb3Sn film on the inner surface of an Nb cavity, the cavity length can be shortened and the system can be operated with a small refrigerator, thus realizing a compact superconducting accelerator system with low operating cost and low price. At KEK, the electroplating...
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Benno List (DESY Hamburg)16/05/2023, 15:30
Sustainability has become a prioritized goal in planning and implementation of future large accelerators, where ILC and CLIC have been collaborating to study novel design and technology solutions to address power efficiency and reduce the environmental impact of the facilities. Recent activities include studies on high efficiency components and life cycle assessments of civil engineering and...
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Igor Syratchev (CERN)16/05/2023, 15:50
Klystron is a key element of almost all particle accelerators. The High Efficiency Klystron Project at CERN is targeted to develop, fabricate and commission the new devices with improved efficiency for various particle accelerators and other applications. This activity is conducted in a close collaboration with industrial partners and scientific Labs. We will review the status and ongoing...
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Suzanne Evans (Arup)16/05/2023, 16:10
Linear colliders are a promising technology for exploring the frontiers of particle physics. However, the construction and operation of these large-scale scientific instruments have significant environmental impacts, particularly in terms of carbon emissions. In this talk, we present a comprehensive life cycle assessment (LCA) of both the Compact Linear Collider (CLIC) and International Linear...
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Masakazu Yoshioka (Iwate University, Iwate Prefectural University), Masakazu Yoshioka (Iwate University, Iwate Prefectural University)16/05/2023, 16:30
The Kitakami Highlands of Iwate Prefecture, where the ILC candidate site is located, is served by Tohoku Electric Power Co. The company's CO2 emission coefficient for FY2021 is 0.483 kg- CO2/kWh. This is about twice the figure for Europe. The Japanese government has set a goal of achieving carbon neutrality by 2050. This report presents a scenario in line with that policy.
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Ben Shepherd (STFC Daresbury Laboratory)16/05/2023, 16:50
Permanent magnet technology is a path to reducing energy usage and carbon emissions for accelerator facilities. This talk presents some examples of where PM technology has been adopted in place of electromagnets, and highlights the advantages and disadvantages of this technology.
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Zysheng Zhou (IHEP, China)16/05/2023, 17:10
After the discovery of the Higgs boson at LHC, Chinese scientists have planned to build a “Great Collider,” which is a next-generation multinational particle accelerator research facility proposed as a circular electron-positron collider (CEPC) and a super proton–proton collider (SPPC). The CEPC synchrotron radiation power is supposed to be more than 60MW. Institute of High Energy Physics...
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Goh Mitoya (Higashi Nihon Kidenkaihatsu Co., Ltd., Japan)16/05/2023, 17:30
We are conducting research to recover and utilize the energy discharged from the ILC facility under the concept of Green ILC. As the candidate site for construction, Iwate Prefecture, which has the Kitakami site, is 80% mountainous, and an effective model for heat energy circulation and utilization that suits the regional characteristics is required. Therefore, we aim to commercialize an...
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Masahiko Kondo (Kondo Equipment Corporation, Japan)16/05/2023, 17:40
: In cooperation with Iwate University, Iwate Prefectural University, and several private companies, we are constructing a 20-hectare facility within a 40-minute drive time and 30-40 km from the ILC candidate site to provide residential facilities and outdoor activities to promote health and familiarity with nature. This facility can serve as a model for town planning where ILC-related people...
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Faya Wang (SLAC)17/05/2023, 08:30
In the talk, I'll briefly introduce the C3 staged demonstration plan and its possible applications. The talk will cover technical demonstration and test setup for each stage.
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Armin Ilg (University of Zürich)17/05/2023, 08:30
The FCC-ee is a proposed future e$^+$e$^-$ collider capable of producing all SM particles in large quantities and clean experimental conditions. Up to four experiments can detect the collision products, with IDEA being one of the proposed detector concepts at FCC-ee. IDEA needs to fulfil requirements similar to experiments at other proposed lepton colliders such as reliable particle...
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Jennet Dickinson (Fermilab)17/05/2023, 08:30
Silicon pixel trackers are at the heart of all modern collider physics design, providing high-quality position measurements close to the beamline and forming the core of modern heavy-flavor tagging algorithms. Recent advances in both silicon pixel size and techniques for rendering machine learning algorithms into hardware allow detailed information about the ionization charge deposition to be...
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Dr Erica Brondolin (CERN)17/05/2023, 08:45
CLUE is a fast and innovative density-based clustering algorithm to group digitized energy deposits (hits) left by a particle traversing the active sensors of a high-granularity calorimeter in clusters with a well-defined seed hit. It was developed in the context of the new high granularity sampling calorimeter (HGCAL) which will be installed in the forward region of the Compact Muon Solenoid...
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Mirella Vassilev (SLAC)17/05/2023, 08:50
In light of upgrades such as the High Luminosity LHC (HL-LHC) and proposals for future collider experiments, continued development of particle tracking technology is crucial. Monolithic Active Pixel Sensors (MAPS) are established vertex detectors, which combine the readout electronics and sensitive volume in one sensor, providing excellent spatial resolution, while maintaining a low power...
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Dr Loukas Gouskos (CERN)17/05/2023, 09:00
The Future Circular Collider (FCC) is designed to provide unprecedented luminosity and centre-of-mass energies via three options, namely FCC-ee, FCC-eh, and FCC-hh. At this stage, one of the priorities of the FCC program is the optimization of the detector concepts and physics reach. A critical component to maximize the physics reach is the identification of the flavor of the jet. To this end,...
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Marca Boronat (Cern)17/05/2023, 09:00
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Alexandre Habib (SLAC)17/05/2023, 09:10
The detectors at future e+e- linear colliders will need unprecedented precision on Higgs physics measurements. These ambitious physics goals translate into very challenging detector requirements on tracking and calorimetry. High precision and low mass trackers, as well as highly granular calorimeters, will be critical for the success of the physics program. To develop the next generation of...
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Pedro Morales Sanchez (CERN)17/05/2023, 09:15
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Taikan Suehara (Kyushu University)17/05/2023, 09:15
There are emerging interest to improve performance of the event reconstruction using deep-learning techniques. We are working on algorithms based on Graph Neural Networks for both particle flow algorithm and quark flavor tagging. For the particle flow, we imported GravNet-based structure from CMS HGCal study and applied it for photon separation at ILC calorimeter. For the quark flavor tagging,...
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Lindsey Gray (Fermilab)17/05/2023, 09:30
Structured columnar data formats have seen significant adoption in LHC analyses, with more than half of modern CMS analyses using “NanoAOD” and its specialized variations. With this lightweight, 2kb/event, data format analysis groups are able to perform primary physics analysis, scale factor derivation, machine learning training and inference with and without expert features, and low level...
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Claudio Di Giulio17/05/2023, 09:30
TEX facility if commissioned for high power testing to characterize
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accelerating structures and validate them for the operation on future
particle accelerators for medical, industrial and research
applications. At this aim, TEX is directly involved in the LNF leading
project EuPRAXIA@SPARC_Lab.
The brief description of the facility and its status will be provided. -
Peter Kluit (Nikhef)17/05/2023, 09:30
A large, worldwide community of physicists is working to realize
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an exceptional physics program of energy-frontier, electron-positron
collisions with the International Linear Collider (ILC)
and other collider projects (summarized and evaluated in
https://arXiv.org/abs/2208.06030).
The International Large Detector (ILD) is one of the proposed detector concepts at the next \ee collider.... -
Zenghai Li (SLAC)17/05/2023, 10:30
An advanced Normal-Conducting RF (NCRF) C-band accelerating structure has been designed for a high gradient, high power e+e- linear collider linac in the TeV class. This design is attributed to the R&D advancement of an emerging class of distributed coupling accelerator topology exploring nominal cavity geometries. The accelerating structure features internal manifolds for distributing RF...
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Glen White (SLAC)17/05/2023, 10:30
A preliminary design for the main Linac for the 250 GeV center-of-mass energy version of the Cold Copper Collider (C3) is presented. This design was used to understand the beam dynamics for the C3 accelerator and specify expected alignment and vibration tolerances.
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Mr Jesús Pedro Márquez Hernández (IFIC (CSIC/UV))17/05/2023, 10:30
Future Higgs Factories will allow the precise study of $e^{-}e^{+}\rightarrow q\bar{q}$ with $q=s,c,b,t$ interactions at different energies, from the Z-pole up to high energies never reached before.
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In this contribution, we will discuss the experimental prospects for the measurement of differential observables in $e^{-}e^{+}\rightarrow b\bar{b}$ and $e^{-}e^{+}\rightarrow c\bar{c}$... -
Kensei Umemori (KEK)17/05/2023, 10:30
One of the critical issue to fabricate ILC-type cryomodule is compliance with the high pressure gas regulation(HPGR) in Japan. Currently most of our effort against HPGR is devoted for the Nb SRF cavity fabrication. Pre-assessment application form is under preparation, which is based on the results of mechanical tests of material and stress calculation of the cavity. Our strategy against HPGR...
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Leonhard Reichenbach (CERN / University of Bonn)17/05/2023, 10:30
Reaching the physics goals of future $e^+e^-$ colliders requires excellent detectors and software tools optimized towards the highest precisions.
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The CLD detector model establishes a conservative baseline for an experiment for the proposed FCC-ee collider.
However, the quickly evolving silicon-detector landscape will allow building a detector with parameters beyond the currently established... -
Sergey Belomestnykh (Fermilab)17/05/2023, 10:45
High Gradient Cryomodule (HGC) is a collaborative effort to demonstrate cryomodule gradients ~10-20% higher than ILC TDR. Applications of high gradient SRF include ILC, Fermilab Accelerator Complex Evolution (ACE), muon collider. In this presentation we report on progress towards assembly and testing HGC.
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Enrico Manosperti (CERN)17/05/2023, 10:50
The Compact Linear Collider (CLIC) is a proposed linear accelerator designed to collide electrons and positrons at energies up to 3 TeV. In order to explore new physics and to be more competitive with other collider projects, CLIC is exploring the increase of the center-of-mass energy to 7 TeV. The CLIC Beam Delivery System (BDS) transports the lepton beams from the exit of the Main Linac to...
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Ties Behnke (DESY), Daniel Jeans (KEK IPNS)17/05/2023, 10:50
The International Large Detector (ILD) is a detector designed primarily for the International Linear Collider (ILC), a high-luminosity linear electron-positron collider with an initial center-of-mass energy of 250 GeV, extendable to 1 TeV.
The ILD concept is based on particle flow for overall event reconstruction, which requires outstanding detector capabilities including superb tracking,...
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Zhijie Zhao (DESY)17/05/2023, 10:50
The majority of Monte-Carlo (MC) simulation campaigns for future $e^+e^-$ colliders has so far been based on the leading-order (LO) matrix elements provided by Whizard 1.95, followed by parton shower and hadronization in Pythia6, using the tune of the OPAL experiment at LEP. In this contribution, we test and develop the interface between Whizard3 and Pythia8. As a first step, we simulate the...
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Ankur Dhar (SLAC)17/05/2023, 11:00
Future colliders will require injector linacs to accelerate large electron bunches over a wide range of energies. For example the Electron Ion Collider requires a pre-injector linac from 4 MeV up to 400 MeV over 35 m [1]. Currently this linac is being designed with 3 m long traveling wave structures, which provide a gradient of 16 MV/m. We propose the use of a 1 m distributed coupling design...
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James Maniscalco (SLAC)17/05/2023, 11:00
LCLS-II-HE is an ongoing upgrade project to the superconducting accelerator complex at SLAC. 23 new LCLS-II-style cryomodules are being built at partner laboratories Fermilab and Jefferson Lab. 192 new 9-cell niobium cavities prepared with the "2/0" nitrogen doping recipe are being procured from an industrial SRF cavity supplier. In this report we present an update on the status of acceptance...
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Fabio Bosco (University of California, Los Angeles)17/05/2023, 11:10
High luminosity electron-positron linear colliders constitute a fundamental instrument in the field of elementary particle physics. The ``Cool copper collider", or C$^3$, is a proposal for a 250 COM GeV Higgs factory, with possible extension to the TeV-scale, and it represents a promising candidate for the near future high energy physics. The C$^3$ infrastructure is conceived as a modular...
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Dr Karsten Buesser (DESY)17/05/2023, 11:10
Construction and assembly of future Higgs Factory detectors is a complex endeavour and the related time lines might be longer than anticipated. In recent years, possible assembly scenarios for the ILD detector concept at the ILC have been studied in some detail. I will summarise the results which might be interesting for other detectors at future Higgs Factories.
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Alan Price (CERN)17/05/2023, 11:10
The proposed physics programs at future lepton colliders will deliver a level of experimental precision that is unseen in our field. To ensure a successful physics program, significant improvements are needed in theoretical calculations to reach or surpass the experimental accuracy. One such theoretical avenue that can be improved is the treatment of electroweak radiative corrections in...
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Bianca Giaccone (Fermilab)17/05/2023, 11:15
Plasma processing can be used to mitigate hydrocarbon-related field emission in SRF cavities in situ in cryomodules. We developed plasma cleaning for LCLS-II 1.3GHz N-doped cavities and we successfully applied it to the LCLS-II High Energy verification cryomodule (vCM). This test demonstrated that plasma processing can be a valuable tool to mitigate both field emission and multipacting in situ...
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Anatoly Krasnykh (SLAC)17/05/2023, 11:20
A preliminary study on C3-demo RF system layout has been conducted at SLAC. For the C3 demo facility, the study focused on main commercial off the shelf (COTS) RF components such as modulator, klystron, and waveguide components. A review of some issues for this hardware will be discussed in the frame of the problem future linear colliders.
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Subashini De Silva (Old Dominion University)17/05/2023, 11:30
The International Liner Collider requires a crabbing system to increase the luminosity of the colliding electron bunches. There are several frequency options proposed for the crabbing cavity design. We have designed a 1.3 GHz compact rf-dipole crabbing cavity to compensate for the luminosity degradation due to large crossing angle. The rf-dipole design has been selected as one of the two...
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Dr Juergen Reuter (Deutsches Elektron-Synchrotron DESY)17/05/2023, 11:30
We give a status report on new developments in the WHIZARD event generator,
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including NLO electroweak automation for e+e-, loop-induced processes, POWHEG
matching, new features in the UFO interface and the current development for
matching between exclusive photon radiation and fixed-order LO/NLO EW
corrections. We report on several bug fixes relevant for certain aspects of the
ILC250 MC... -
Yongke Zhao (CERN)17/05/2023, 11:30
The previous designs of the CLIC RTML BC2 RF accelerating structures are found to be either not optimal in terms of consumption powers and costs, or problematic in the structure performance test or in the BBA test. Threfore, we optimised the structures for a minimum cost and a successful BBA test, based on an existing X-band structure design that was designed for the CLIC klystron-based main...
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Valery Dolgashev (SLAC)17/05/2023, 11:40
The accelerating structure is a critical component of particle accelerators for medical, security, industrial and scientific applications. Standing-wave side-coupled accelerating structures with small apertures and nosecones are used when available rf power is at a premium and average current and average power lost in the structure are large. Meanwhile, typical on-axis coupled traveling wave...
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17/05/2023, 11:45
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Arun Saini (Fermilab)17/05/2023, 11:50
The scientific mission of the International Linear Collider (ILC) relies on achieving high-energy high-luminosity beam collisions, which necessitate a low emittance beam transport section to ensure the maintenance of high-quality beam along the accelerator. Thus, the preservation of beam emittance during acceleration represents a fundamental design and operational objective of the ILC...
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17/05/2023, 12:00
https://agenda.linearcollider.org/event/10048/
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Dr Yoshinori Enomoto (KEK), Yoshinori Enomoto (KEK)17/05/2023, 13:30
Status of E-driven positron source for ILC including R&D plan is presented. A test stand to operate a proto-type Flux concentrator will be constructed in the STF facility. The status of Flux concentrator design and the test stand will be presented.
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Liam Bromiley (CERN)17/05/2023, 13:30
The Future Circular Collider (FCC) project is a major international effort aimed at designing and constructing the next-generation particle accelerator for high-energy physics research. As part of the FCC project, civil engineering feasibility studies are being conducted to assess the feasibility of building a large-scale collider, including tunnel excavation, site preparation, and...
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Timothy Barklow (SLAC)17/05/2023, 13:30
The XFEL Compton γγ Collider (XCC) Higgs factory concept is an alternative to e+e colliders which could possibly: (1) begin operation on an earlier time scale due to its lower cost and smaller footprint, and (2) provide comparable Higgs coupling measurements, with some unique advantages With the XCC, 62.8 GeV electron beams collide with 1 keV X-ray free electron laser (XFEL) beams at points...
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Haoran Xu (Los Alamos National Laboratory)17/05/2023, 13:30
High-gradient RF accelerator cavities must have absorbers for the suppression of the higher order modes (HOM). It was proposed that NiCr deposited into thin waveguide slots that run along a distributed coupling structure may provide adequate HOM absorption, for the proposed Cool Copper Collider (C3) accelerator design. Fabrication methodology for NiCr was recently developed at SLAC. At LANL we...
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Tomoyuki Sanuki17/05/2023, 13:45
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Tania Robens (Rudjer Boskovic Institute (HR))17/05/2023, 13:48
I give a short summary on scenarios with new physics scalars that could be investigated at future e+e− colliders. I concentrate on cases where at least one of the additional scalar has a mass below 125 GeV, and discuss both models where this could be realized, as well as studies which focus on such scenarios.
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Brad Shirley (SLAC)17/05/2023, 13:50
A C-band klystron is being developed to provide power to a fully integrated compact linear accelerator system. The design of this high-power RF source was centered on minimizing weight and volume. In doing so, a novel periodic permanent magnet focusing circuit was developed alongside a compact RF circuit to achieve > 50% efficiency in simulation. Fabrication of this system is underway and...
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Dr Yu Morikawa (KEK)17/05/2023, 14:00
A water-cooled target with a rotation rod is designed for the E-Driven positron source. The test operation of the rotating rod examining the vacuum performance of the ferr-fluid seal is ongoing. The status and a new design improving the performance will be presented.
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Claudio Di Giulio17/05/2023, 14:00
From 2004 the Frascati Beam Test Facility (BTF) in the DAFNE
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accelerator complex provides to the external user up to 1E10 electron
per bunch or up to 1E9 positron per bunch to develop their detector.
After an upgrade program terminated in 2020 of the beam test facility
a description of the status and available beam lines will be done. -
Howard Haber (UC, SANTA CRUZ)17/05/2023, 14:06
New sources of neutral scalar-mediated CP violation that arise in extended Higgs sectors can originate in the Yukawa sector or in the structure of the scalar potential. Most treatments in the literature focus on CP-violating Yukawa interactions of neutral scalars, which is an example of P-odd CP violation since it derives from the mixing of two C-even operators of opposite sign P. In contrast,...
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Gerard Lawler (UCLA)17/05/2023, 14:10
Concepts for future electron colliders such as the Cool Copper Collider (C^3) benefit from normal conducting radiofrequency (NCRF) cavities operated at cryogenic temperatures in many ways, including potential cost reduction and increased beam brightness. It is then advantageous to consider implementations of cryogenic electron linacs in order to study this new regime of cryogenic NCRF...
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MASAO KURIKI (Hiroshima University)17/05/2023, 14:10
Start to end simluation of ILC E-Driven Positron source is presented.
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Martin Breidenbach (SLAC)17/05/2023, 14:15
C3 operates under Liquid Nitrogen (LN) at a temperature of ~80 K to improve the electrical conductivity of Cu by a factor of ~3, resulting in an accelerator structure shunt impedance of ~300MΩ/m. Since the accelerator structures are normal conducting, they dissipate ~2500 watts each. The structures are cooled by nucleate boiling, and the resulting cold saturated Nitrogen vapor is re-liquified,...
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Yushi Mura (Osaka University)17/05/2023, 14:24
Electroweak baryogenesis is a promising scenario, which relies on electroweak symmetry breaking caused by the Higgs potential.
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The detail of the Higgs potential would be revealed by the future high energy colliders, so that these are necessary to test the scenario of electroweak baryogenesis.
We have calculated the baryon number density in aligned two Higgs doublet model, in which coupling... -
Haoran Xu (Los Alamos National Laboratory)17/05/2023, 14:30
We present an RF and engineering design of a 1.6-cell RF photoinjector at 5.712 GHz. Two designs were developed: one for the room temperature and another one for cryogenic temperature operations. At Los Alamos we are constructing a facility for testing photocathodes that produce high-quality electron bunches under an intense RF electric field in excess of 100 MV/m. The basic 1.6-cell RF...
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Hitoshi Hayano (KEK), Dr M Fukuda (KEK)17/05/2023, 14:30
APS cavity is designed for the capture linac of E-Driven positron source. In addition to the RF load, a large heat load by the beam is expected. The experiment to simulating the detuning is being carried out at Iwate ILC lab. The status will be reported.
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Harry van der Graaf (Nikhef)17/05/2023, 14:30
For the ATLAS Muon Spectrometer, the alignment of the inner, middle and outer tracking detectors is crucial for the precise measurement of the muon momentum. This alignment is monitored by fixing a back-illuminated coded mask on the inner detector, a lens on the middle detector, and an image pixel sensor on the outer detector. An image of the mask is projected, by the lens, onto the image...
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Dr S Kuroguchi (Hiroshima Univesity)17/05/2023, 14:40
Beam loading compensation in the booster linac by traveling wave linac is disscussed.
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Kento Katayama (Osaka U.)17/05/2023, 14:42Track 1: Physics at e+e- collidersEarly Career (Eligible for Oral or Poster)
We discuss signatures of CP-violating (CPV) two Higgs doublet models at LHC and future linear colliders, where CPV appears from Yukawa interactions and the Higgs potential. In particular, we consider the scenario with the Yukawa alignment to avoid tree level flavor changing neutral currents. In addition, we consider the Higgs alignment in which the couplings of the discovered Higgs boson are...
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Tetsuo ABE (KEK)17/05/2023, 14:45
In the X-band high-gradient test stand at KEK, Nextef, various normal-conducting high-gradient accelerating structures were high-power tested for, e.g., the CLIC prototype and SLAC distributed-coupling structures. However, April 3, 2019, significant fire occurred at Nextef, and all the high-gradient tests were terminated. It took three yours to recover the test facility focused on safety. We...
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Max Varverakis (Cal Poly, SLO), Spencer Gessner (SLAC)17/05/2023, 14:50
Positron targets are a critical component of future Linear Colliders. Traditional targets are composed of high-Z metals that become brittle over time due to constant bombardment by high-power electron beams. We explore the possibility of a liquid xenon target which is continuously refreshed and therefore not susceptible to the damage mechanisms of traditional solid targets. Using the GEANT4...
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Chunguang Jing (ANL/Euclid Techlabs)17/05/2023, 15:30
The progress on developing of dielectric disk accelerator will be presented. General challenges and future directions will be mentioned as well.
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Toshiyuki OKUGI (KEK)17/05/2023, 15:30
ILC technology network (ITN) is currently being promoted to facilitate the development of ILC-related technologies for the engineering design of ILC. ITN contribution of KEK in the areas of DR and BDS will be presented.
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Dr Karsten Buesser (DESY)17/05/2023, 15:30
Large detector solenoids are crucial for all future Higgs Factory detectors. Since the production of the last big magnets, industry has cut its capacities for the production of aluminum stabilised conductors which represent the accepted standard technology for big detector magnets.
A workshop at CERN in September 2022 brought together experts from detectors, magnet designers, and industry....
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Masakazu Kurata (KEK)17/05/2023, 15:50
Beam parameter optimization is the most important topic in beam operation.
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I will present the automatic beam tuning and the tuning technique for better optimization using machine learning at ATF/ATF2. -
Yasuhiro Makida (KEK)17/05/2023, 15:50
Yasuhiro Makida, Tomoyuki Sanuki, Takahiro Okamura, Yasuhiro Sugimoto, Toshiaki Tauchi
While referring to CMS fabrication experience, we have been discussing manufacturing process of ILD superconducting solenoid with production companies and specified freight carriers. In case of CMS, five coil modules were transported from the winding factory to the assembly building in the CMS site where...
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Lixin Ge (SLAC), Dr Zenghai Li (SLAC), Dr Cho-Kuen Ng (SLAC), Dr LIling Xiao (SLAC)17/05/2023, 16:00
A simulation workflow is under development to interface particle data transfer and matching of geometry interface between the electromagnetic (EM) cavity simulation code ACE3P and radiation code Geant4. The target is to simulate dark current (DC) radiation effects for the KEK 56-cell S-band accelerating structure using ACE3P and Geant4, and benchmark against KEK experiment data. As a first...
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Anatoly Krasnykh (SLAC)17/05/2023, 16:10
The emittances of the injected and extracted beams, the structure of the bunch train, and the repetition rate are critical parameters of the damping ring, which indirectly determine the luminosity of future colliders. Injection and extraction systems are one of the main components of damping rings. A pulse kicker in tandem with a DC septum magnet controls the bunch orbit in these systems. The...
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Brett Parker (Brookhaven National Laboratory)17/05/2023, 16:10
In preparing to secure commitments to approve the ILC in Japan, the ILC International Design Team (IDT) has identified a prioritized list of critical R&D Work Packages (WPs) that should be pursued in a timely matter. Among these WPs, WP-16 has been identified by an ICFA sponsored Machine Advisory Committee review as having very high priority. WP-16 consists of two sub-tasks with the first task...
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Evan Ericson17/05/2023, 16:20
In this talk we develop a standing wave cell design to be used in a distributed coupling structure that satisfies the CLIC transverse wake potential limit. We start by designing a standing wave cell based on the middle cell of the CLIC-G* traveling wave structure. Next we adapt the cell to be suitable for distributed coupling and simulate its wake potentials in an ideal case where open...
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Enrico Manosperti (CERN)17/05/2023, 16:30
The CLIC Beam Delivery System (BDS) transports the lepton beams from the exit of the Main Linac to the Interaction Point (IP). The Final Focus System (FFS) is the last part of the BDS and its role is to focus the beam to the required size at the IP and to cancel the chromaticity of the Final Doublet (FD). MAD-X and MAD-NG are simulation codes for beam dynamics and optics that are used for...
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Andrew White (University of Texas at Arlington (US)), Marcel Stanitzki (DESY)17/05/2023, 16:45
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Jim Brau (University of Oregon (US))17/05/2023, 16:50
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Marcel Stanitzki (DESY)17/05/2023, 17:10
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17/05/2023, 17:25
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17/05/2023, 17:30
https://agenda.linearcollider.org/event/10048/
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17/05/2023, 18:10
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Laxdal Bob (TRIUMF)18/05/2023, 08:30
For the 14 mrad crossing angle proposed, crab cavity systems are fundamentally anticipated for the viable operation of the International Linear Collider (ILC), in order to maximise its luminosity performance. Since 2021, a specialist development team have been defining optimum crab cavity technologies which can fulfil the operational requirements for ILC, both for its baseline centre-of-mass...
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MASAO KURIKI (Hiroshima University)18/05/2023, 08:30
ILC-Japan Detector R&D Collaboration Task Force
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Cameron Geddes18/05/2023, 08:50
AAC Developments: Plasma Wakefield for High Energy
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Lindsey Gray (Fermilab)18/05/2023, 08:50
Collider Background Studies
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Dr Magnus Mager (CERN)18/05/2023, 09:10
ALICE is developing a novel vertex detector, "ITS3", to upgrade its experiential apparatus in LHC Long Shutdown 3 (LS3), in 2026-2028. The three inner-most tracking layers will be replaced by ultra-thin (<50 μm), wafer-scale (up to ~10 ⨉ 26 cm² in size on 300 mm wafers) Monolithic Active Pixel Sensors (MAPS) that are fabricated in a 65 nm CMOS process. At these thicknesses the sensors become...
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Dan Gonnella (SLAC)18/05/2023, 09:10
The commissioning of LCLS-II, a superconducting linac upgrade to the world’s first x-ray free-electron laser, is nearly complete following 10 years of SRF and FEL technology development. The technology used to build this upgrade significantly leveraged experience from EU-XFEL and ILC R&D. Here results from the production and commissioning of SRF cryomodules, primarily the cavities, will be...
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Dirk Zerwas (IJCLab and DMLab)18/05/2023, 09:30
ECFA kicked off a series of workshops in 2021 on [Higgs/EW/top factories][1] to bring together the efforts of various e+e- projects. Working groups on Physics (WG1), Physics Analysis Tools (WG2) and more recently on Detectors (WG3) were created. The activities of the Physics Analysis Tool group will be summarized with an emphasis on KEYHEP which was chosen as the software framework.
...
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Tor Raubenheimer (SLAC)18/05/2023, 09:30
Overview of FCC-ee.
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Prudhvi Bhattiprolu (University of Michigan)18/05/2023, 10:30
Vectorlike leptons are an intriguing possibility for physics beyond the Standard Model. This talk is concerned with the example of weak isosinglet vectorlike leptons that decay through a small mixing with the tau lepton, for which the discovery and exclusion reach of the Large Hadron Collider and future proposed hadron colliders is limited. For this minimal model, I will argue that an $e^+...
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Roman Pöschl (CNRS/IN2P3/IJCLab - Université Paris-Saclay)18/05/2023, 10:30
Future Higgs factory experiments will require high precision in the jet reconstruction, particle identification and event tagging, all challenges which can addressed by ultra-granular calorimeters, associated with high-precision tracking and performant Particle Flow reconstruction. The technical issues of large ultra-granular calorimeters are numerous, and maximal for the electro-magnetic...
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Brendon Bullard (SLAC)18/05/2023, 10:30Sustainability and ApplicationsEarly Career (Eligible for Oral or Poster)
The successful continuation of high energy physics probing regimes of ever-higher energies using conventional experimental methods is unsustainable both fiscally and environmentally. The already visible effects of climate change put additional pressure on the HEP community to develop techniques to mitigate the carbon footprint of large-scale collider experiments through direct and indirect...
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Spencer Gessner (SLAC)18/05/2023, 10:30
As part of the Snowmass process, a number of recommendations were made for research topics that can improve the performance and target capabilities of high-power target and sources for HEP applications. The DOE has commissioned a Roadmap for this research, with the Roadmap Workshop held on April 11-12. This talk will summarize the results of the workshop and present the Roadmap.
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Dr Masashi Aiko (KEK)18/05/2023, 10:48
In various new physics models, the Higgs sector is often extended from its minimal form in the standard model (SM), and there are additional Higgs bosons.
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Direct searches of the additional Higgs bosons and precision studies of the SM-like Higgs boson play complementary roles to explore the extended Higgs models.
Recently, it has turned out that the properties of the SM-like Higgs boson are... -
Adrian Irles (IFIC (CSIC/UV))18/05/2023, 10:50
Most future high energy $e^{+}e^{-}$ colliders proposals consider using high granular calorimeters in their detectors concepts. One of such high granular calorimeters proposals silicon-tungsten electromagnetic calorimeter (SiW-ECAL) designed and constructed by the CALICE Collaboration. Its key features are: unprecedented high granularity and compactness featuring very low power consumption. ...
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Erdong Wang (BNL)18/05/2023, 10:50
The high-intensity, polarized electron source is a critical component for the electron-ion collider, requiring a polarized electron gun with higher voltage and higher bunch charge than any existing polarized electron source. At Brookhaven National Laboratory, we have built and successfully conditioned an inverted HVDC photoemission gun up to 350 kV. In this study, we report on the performance...
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Emilio Nanni (SLAC)18/05/2023, 10:50
As the next generation of large accelerator-based facilities are being considered at the Snowmass 2021 study high priority has to be given to environmental sustainability including energy consumption, natural resource use and the environmental impact of effluents. Typically, increased performance - higher beam energies and intensities - of proposed new facilities have come with increased...
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Tim Lengler (Hereon)18/05/2023, 11:00
For the planned International Linear Collider (ILC) a material for the positron source target is required which can withstand the high energy deposition needed for a high luminosity positron source. To distribute the load and keep the target at a reasonable temperature, the target is rotated with high velocity. Therefore, the material needs not only withstand the cyclical thermal load but also...
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Ms Jurina Nakajima (KEK / SOKENDAI), Daniel Jeans (KEK IPNS)18/05/2023, 11:06
We study the search for Right Handed Neutrinos (RHN) at ILC. RHN are introduced by several extensions of the SM to explain the tiny neutrino mass. If RHN is a Majorana particle, RHN pair production is allowed in e−e+ collisions. We focus on RHN pair production based on a minimal U(1)B−L model. A distinctive signature is a pair of same sign leptons, a smoking-gun for Lepton Number Violation....
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Steffen Doebert (CERN)18/05/2023, 11:10
The adiabatic matching device is a critical component of any positron source for capturing the particles and has been as well a limitation of existing sources. CERN studies adiabatic matching devices for CLIC and FCCee. Magnetic design studies have been done to optimise the shape of these pulsed magnets in order to maximise the field and improve their robustness against field breakdowns....
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Dr Jerry Vavra (SLAC)18/05/2023, 11:10
J. Va’vra, A.G. Schwartzman, V. Cairo, M. Basso and Su Dong
Go to contribution pageOne important physics goal of future Higgs Factories is to probe the Higgs coupling to strange quarks. This requires the design of a specialized Ring Imaging Cherenkov (RICH) detector that can provide pi/K separation up to 30-50 GeV. In this talk, we present studies of a RICH system that operates at 5 Tesla. We find that the... -
Jenny List (DESY)18/05/2023, 11:10
Appropriately designed, the ILC facility could offer unique applications beyond the main collider program. This contribution will review the possibilities to extract electron and/or positron bunches from the main beam, and focus in particular on their use for a LUXE-type experiment, which would allow strong-field QED to be probed in regimes relevant multi-TeV colliders and for astrophysical...
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Prof. Aleksander Filip Zarnecki (Faculty of Physics, University of Warsaw)18/05/2023, 11:24
A light Higgs boson, with mass of the order of 100 GeV, is still not excluded by the existing experimental data, provided its coupling to gauge bosons is strongly suppressed compared to a SM-like Higgs boson at the same mass. Also other couplings of such a scalar could be very different from the SM predictions leading to non-standard decay paterns. Considered in the presented study is the...
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Dr Mitch Schneider (SLAC)18/05/2023, 11:30
High Q cavities are an essential component for rf pulse compression. In order to reduce cavity losses and increase compatibility with applications requiring long fill times, we are interested in developing compact superconducting cavities that operate at high temperature (~80 K). We are designing and planning to measure an RF cavity at 11.424 GHz that will include High Temperature...
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Manuel Formela (University of Hamburg), Niclas Hamann (University of Hamburg), Maxence Thévenet , Gregory Boyle , Jens Osterhoff (DESY)18/05/2023, 11:30
The International Linear Collider is a planned electron-positron linear collider with its positron
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source producing positrons by aiming undulator radiation onto a rotating target. The resulting,
highly divergent positron beam requires immediate optical matching to improve the luminosity and
therefore the success of the intended collision experiments. Here, optical matching refers to the... -
Niclas Hamann (University of Hamburg)18/05/2023, 11:40
In recent years, high-gradient, symmetric focusing with active plasma lenses has regained significant interest due to
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the potential advantages in compactness and beam dynamics compared to conventional focusing elements.
One potential application is the optical matching of highly divergent positrons from the undulator-based ILC positron source into
the downstream accelerating structures. In... -
María Teresa Núñez Pardo De Vera (DESY)18/05/2023, 11:42
The colour neutral sector is the one most relevant for the suggestions SUSY presents
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to the problems of the the SM - the hierarchy problem, naturalness, dark matter, the
muon g-2 enigma. This sector is both for theoretical reasons, and from the results of
global fits, expected to be light. But, unfortunately, it is also the sector for which
current energy frontier colliders, viz. the LHC,... -
Rafi Hessami (SLAC)18/05/2023, 11:50
We investigate electrostatic traps as a novel source of positron beams for accelerator physics applications. Penning-Malmberg (PM) traps are commonly employed in low-energy antimatter experiments. Positrons contained in the trap are cooled to room temperature or below. We calculate the thermal emittance of the positrons in the trap and show that it is comparable to or better than the...
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Vladimir Shiltsev (Fermilab)18/05/2023, 13:30
While dimuonium (mu+mu-) -- the ``smallest QED atom" -- has not yet been observed, it is of utmost fundamental interest. By virtue of the larger mass, dimuonium has greater sensitivity to beyond the standard model (BSM) effects than its cousins positronium or muonium, both discovered long ago, while not suffering from large QCD uncertainties.
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Dimuonium atoms can be created in e+e- collisions... -
Benedikt Gocke18/05/2023, 13:30
The large top quark samples collected with the ATLAS experiment at the LHC have yielded measurements of the production cross section of unprecedented precision and in new kinematic regimes. They have also enabled new measurements of top quark properties that were previously inaccessible, enabled the observation of many rare top quark production processes predicted by the Standard Model and...
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Elias Mettner18/05/2023, 13:30Track 2: Analysis and ReconstructionEarly Career (Eligible for Oral or Poster)
Electron-positron pair production and hadron photoproduction are the most important beam-induced backgrounds at linear electron positron colliders. Predicting them accurately governs the design and optimization of detectors at these machines, and ultimately their physics reach. With the proposal, adoption, and first specification of the C3 collider concept it is of primary importance to...
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Mohamed Othman (SLAC)18/05/2023, 13:30
Recent efforts at SLAC aim at developing high-power accelerators powered by compact, high-efficiency rf sources such as klystrons and Inductive output tubes (IOT). In particular, a high-efficiency IOT is an electron-beam-driven RF source employed in the UHF band that offers high efficiency at variable output power levels. Due to the improved linearity, high efficiency, and reduced size, it is...
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Dimitris Ntounis (SLAC)18/05/2023, 13:45Track 2: Analysis and ReconstructionEarly Career (Eligible for Oral or Poster)
Machine-induced muon backgrounds at linear colliders are an important consideration when ensuring a high quality physics dataset, as this background can generate spurious missing-energy signals and degrade the ultimate physics reach in recoil-based measurements and searches. This rare background requires detailed beam-material interaction and transport simulations through many meters of...
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Emanuela Musumeci (Instituto de Física Corpuscular (IFIC), Valencia)18/05/2023, 13:50
The analysis of the long-range particle correlations can
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yield valuable insights into the initial state of matter and
potentially reveal the existence of Beyond the Standard Model
scenarios, such as the "Hidden Valley"(HV) one. In this work, we are
interested in QCD-like hidden sectors in which the production of HV
matter would enhance and enlarge azimuthal correlations of... -
Muhammad Shumail (SLAC)18/05/2023, 13:50
We present design of a normal conducting, high efficiency linac that would provide a CW beam of 1 MW
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electrons at 1 MeV energy for various environmental applications. For example, when a flowing sheet of
wastewater is exposed to such a beam, various radiation-induced reactants are generated that lead to water
purification by decomposing the chemical and biological pollutants therein. The... -
Marija Vranic (Instituto Superior Tecnico, University of Lisbon)18/05/2023, 13:50
The next generation of lasers will access intensities above $10^{23}~ \mathrm{W/cm^2}$. Extreme laser-plasma interactions can be explored to form optical traps, create&accelerate particles and produce novel radiation sources. I will present a QED module coupled with the particle-in-cell framework OSIRIS that allows studying nonlinear plasma dynamics in the transition from the classical to the...
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Daniel Jeans (KEK IPNS)18/05/2023, 14:00
I will summarize more and less recent studies of machine-related backgrounds in the context of the ILD concept.
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Dr Emma Snively (SLAC)18/05/2023, 14:10
Accelerator technology developed for future collider designs can form the basis for components in a broad range of medical accelerator applications, enabling new treatments like Very High Energy Electron (VHEE) therapy and new high-speed beam scanning systems for proton therapy. For example, the large aperture of the proposed C3 linac design is optimized to transport long and high charge...
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Glen White (SLAC)18/05/2023, 14:10
We overview the key subsystems of a Beam Delivery System (BDS) for Linear Colliders, highlighting important aspects pertaining to the Advanced Acceleration community and consider possible extensions to higher collision energies.
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Fernando Cornet-Gomez (CWRU)18/05/2023, 14:10
In this work the prospects for measurements of the top-quark couplings at future colliders are presented. Projections are presented for the high luminosity phase of the Large Hadron Collider and a future Higgs/electroweak/top factory lepton collider. Results are presented for the expected bounds on Wilson coefficients of the relevant SMEFT operators from a global fit to the top-quark physics sector.
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Graham Wilson (University of Kansas)18/05/2023, 14:15
Methods for measuring the absolute center-of-mass energy using dileptons from e+e- collision events
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are further developed with an emphasis on detector and physics limitations.
We discuss three main types of estimator, the lepton momentum-based and angles-based center-of-mass
energy estimators discussed in arXiv:2209.03281, and a new estimator for
the electron and positron collision... -
Maximilian Swiatlowski (TRIUMF)18/05/2023, 14:30
There have been several recent proposals for advanced accelerator designs at extremely high energy that involve potentially challenging experimental environments. For example, a plasma lens could be used to focus beams to significantly increase luminosity of collisions, but the presence of a plasma lens at the heart of a particle detector can create unprecedented experimental challenges. This...
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Stepan Bulanov18/05/2023, 14:50
It is widely accepted that the next lepton collider beyond a Higgs factory would require center-of-mass energy of the order of up to 15 TeV with advanced and novel accelerators (ANAs) being the leading candidates for it. However, intermediate facilities at 20-100 GeV are required to test the technology and demonstrate key subsystems. Here possible design and science case for a 20-100 GeV...
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Javier Olivares Herrador (CERN and Universidad de Valencia)18/05/2023, 15:30
The beam loading (BL) effect results in the reduction of the gradient due to the interaction of the beam with the accelerating cavity. This phenomenon leads to energy losses for long trains of particles. Such an energy degradation is non-negligible in compact and high-intensity linear accelerators, whose popularity is increasing due to their industrial and medical potential. To account for...
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Roman Poeschl (IJCLab)18/05/2023, 15:30
Calorimeters optimised for particle flow feature a high segmentation in both longitudinal and transversal direction. The tendency for future Higgs factories is an increase of the beam collision frequency compared to the case of the International Linear Collider (Bunch trains with a repetition rate of 5-10 Hz). For example at circular e+e- colliders as the FCCee the envisaged bunch distance is...
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Timothy Barklow (SLAC)18/05/2023, 15:30
Please find the abstract here
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David Bruhwiler (RadiaSoft LLC)18/05/2023, 15:50
The two-beam accelerator is one of two primary concepts for the structure wakefield acceleration approach to an e+e- collider. Transient beam loading effects are a significant challenge for the drive beam in a TBA structure, where energy droop in ~50 nC electron bunch trains must be understood and compensated. This problem is being studied at the Argonne Wakefield Accelerator (AWA), where the...
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Allen Caldwell18/05/2023, 15:50
I will report on studies and ideas for medium term particle physics applications of plasma based accelerators
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Nigel Watson (University of Birmingham)18/05/2023, 15:50
The concept of a digital electromagmetic calorimeter using MAPS sensors as the active layers has been demonstrated using the EPICAL-2 prototype, a 24 layer, ~20 radiation length device. Each layer has an active area of $30\times 30~\mathrm{mm^2}$ provided by two ALPIDE sensors. Final results characterising the performance in terms of energy resolution, linearity and lateral shower profile...
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Shuichi Kunori18/05/2023, 16:10
Calorimeters for future colliders will need unprecedented energy and timing resolution, as well as particle identification capabilities. Our collaboration, CalVision,a collaboration of scientist from FNAL, Argonne, Caltech, Maryland, Michigan, Milano-Bicocca, MIT, Oak Ridge, Princeton, Purdue, Texas Tech, and Virginia, is working on making maximal use of available information to enable this...
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Shiyu Zhou18/05/2023, 16:10
The next generation high energy electron-positron collider is crucial for the precision measurements of the Higgs boson and searching new physics beyond the Standard Model. At present, the cost of linear or circular colliders based on traditional radio-frequency accelerators is enormous to meet the requirement for Higgs factory. Advanced accelerator concepts such as the plasma wakefield...
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Ji Qiang (LBL, BERKELEY)18/05/2023, 16:10
The start-to-end beam dynamics simulation plays an important role in
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accelerator design performance optimization.
A parallel beam dynamics framework, IMPACT code suite, has been used
in start-to-end beam dynamics optimization of linear accelerator
design of an x-ray FEL light source. In this talk, we will present
the physical and numerical models in this framework, show an... -
Juhao Wu (SLAC)18/05/2023, 16:30
Cool Copper Collider (C3) offers a unique opportunity to study the Higgs physics. A C3 Demonstration R&D Plan, or the C3 Demonstrator (C3Demo), is an on-going effort to address the R&D and answer the technical questions in a staged approach, ending with a multi-cryomodule linac of 2 GeV electron beams. We report simulation on C3Demo beam dynamics with injector, acceleration, and compression....
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Dr Tohru Takeshita (Shinshu University)18/05/2023, 16:30
We propose a sandwich calorimeter which aims at both ECAL and HCAL for the future collider experiments. It consists of Lead glass layers and Glass scintillator layers of sandwich structure where both layers are active for Cherenkov and scintillation lights respectively. The materials are chosen to be the calorimeter as inexpensive as possible. The expected energy resolution for high energy...
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Chunguang Jing (ANL/Euclid Techlabs)18/05/2023, 16:30
We review the status and challenges on the path of SWFA toward a TeV class linear collider.
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Dirk Zerwas (IJCLab and DMLab)19/05/2023, 08:30
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Adrian Irles (IFIC (CSIC/UV))19/05/2023, 08:50
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Spencer Gessner (SLAC)19/05/2023, 09:15
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Emma Snively (SLAC)19/05/2023, 09:35
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William Graves (ASU)19/05/2023, 10:30
The CXFEL Project encompasses the Compact X-ray Light Source (CXLS) that is now commissioning in the hard x-ray energy range 4-20 keV, and the Compact X-ray Free-Electron Laser (CXFEL) designed to lase in the soft x-ray range 300 – 2500 eV. CXFEL has recently completed a 3-year design phase and just received NSF funding for construction over the next 5 years. These instruments are housed in...
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Michael Peskin (SLAC)19/05/2023, 11:00
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Caterina Vernieri (SLAC), Jens Osterhoff (DESY), Michael Peskin (SLAC), Shoji Asai, Steinar Stapnes (CERN)19/05/2023, 11:05
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Michael Peskin (SLAC)19/05/2023, 11:35
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19/05/2023, 11:50
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Mikael Berggren (DESY)
Some say
Go to contribution pageSUSY is dead, because LHC has not discovered it yet. But is this
really true? It turns out that the story is more subtle. SUSY can be 'just
around the corner', even if no signs of it has been found and a closer
look is needed to quantify the impact of LHC limits and their implications
for future colliders. In this contribution, a study of prospects for SUSY
based on scanning... -
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Marca Boronat (Cern)
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Ben Shepherd (STFC Daresbury Laboratory)
Permanent magnet technology is a path to reducing energy usage and carbon emissions for accelerator facilities. This talk presents some examples of where PM technology has been adopted in place of electromagnets, and highlights the advantages and disadvantages of this technology.
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Arnd Meyer
We present the CMS perspective on the legacy of the CMS experiment in the area of electroweak precision measurements, including the latest measurements as well as prospects for the HL-LHC era.
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Timothy Barklow (SLAC)
Please find the abstract here
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Mikael Berggren (DESY)
which interacts gravitationally with ordinary matter. If this dark sector contains a U(1) symmetry,
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and a corresponding 'dark' photon ($A_{D}$) , it is natural to expect that this particle with kineticly mix
with the ordinary photon, and hence become a 'portal' through which the dark sector can be studied.
The strength of the mixing is given by a mixing parameter $(\epsilon)$. This
same... -
Andrej Saibel (IFIC/CSIC)
Since the observation of a spin-0 particle at LHC by the ATLAS and CMS collaborations, efforts have been made to confirm that the newly discovered particle is indeed the Standard Model (SM) Higgs boson.
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Precise measurements of the Higgs boson couplings are essential for the confirmation of the SM nature of the Higgs boson, the search for physics beyond the SM, and global fits of Effective... -
Khaled Alharbi (DESY)
Detailed simulations of the helical undulator with both ideal and realistic parameters have been performed in detail. The power deposited in walls due to secondary particles, which are produced when a photon passes through the mask material, are included. A possible mask design with a high photon absorption efficiency has been studied for three different materials.
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The photon masks must be... -
Arnd Meyer
The LHC's high center-of-mass energy has enabled the production of millions of top quarks, providing an opportunity to investigate top quark-related observables with great precision. Discrepancies between experimental measurements and theoretical predictions in the top quark sector may suggest the presence of new physics. This presentation highlights recent investigations conducted by the CMS...
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