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49th SLAC Summer Institute (SSI 2021)

16–27 Aug 2021
SLAC
America/Los_Angeles timezone

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Contribution List

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  1. 11. Welcome
    Thomas Rizzo (SLAC)
    16/08/2021, 09:00
  2. 9. The Higgs: What We Know & What We Want to Learn
    Sally Dawson (BNL)
    16/08/2021, 09:05
  3. 10. Q & A
    16/08/2021, 10:00
  4. 12. Standard Model Higgs Basics (I)
    Stefania Gori (UC Santa Cruz)
    16/08/2021, 10:20
  5. 13. Q & A
    16/08/2021, 11:15
  6. 14. Higgs at LHC (I)
    Marumi Kado (Università di Roma la Sapienza and CERN)
    16/08/2021, 11:40
  7. 15. Q & A
    16/08/2021, 12:35
  8. 16. Standard Model Higgs Basics (II)
    Stefania Gori (UC Santa Cruz)
    17/08/2021, 09:00
  9. 17. Q & A
    17/08/2021, 09:55
  10. 18. Higgs at LHC (II)
    Marumi Kado (Università di Roma la Sapienza and CERN)
    17/08/2021, 10:20
  11. 19. Q & A
    17/08/2021, 11:15
  12. 20. BSM Higgs (I)
    Nausheen Shah (Wayne State University)
    17/08/2021, 11:40
  13. 21. Q & A
    17/08/2021, 12:35
  14. 22. Precision Calculations of Higgs Boson Production at Colliders
    Bernhard Mistlberger (SLAC)
    18/08/2021, 09:00
  15. 23. Q & A
    18/08/2021, 09:55
  16. 24. Higgs at LHC (III)
    Marumi Kado (Università di Roma la Sapienza and CERN)
    18/08/2021, 10:20
  17. 25. Q & A
    18/08/2021, 11:15
  18. 26. BSM Higgs (II)
    Prof. Nausheen Shah (Wayne State University)
    18/08/2021, 11:40
  19. 27. Q & A
    18/08/2021, 12:35
  20. 109. #100 Lepton Flavor Violating Mixings at 2-Loop from the S-Matrix
    Mehmet Asim Gumus (Sissa)
    18/08/2021, 13:30
  21. 110. #101 Search for the Decay of the Higgs Boson to Charm Quarks with the ATLAS Experiment
    Zijun Xu (SLAC)
    18/08/2021, 13:30
  22. 103. #73 Optimization of sensitivity for the Di-Higgs search in $b\bar{b}l\nu qq$ final state in the LHC data recorded by the ATLAS detector in $pp$ collisions at $\sqrt{s}$ = 13 TeV
    Pratik Kafle (Reed College)
    18/08/2021, 13:30
  23. 104. #76 Study of variability in radiation from the Blazar source 3C454.3
    Kaustav Dipta Goswami (Tezpur University)
    18/08/2021, 13:30
  24. 105. #77 Gravitational Microlensing by Dark Matter Subhalos and Boson Stars
    Zihui Wang (NYU)
    18/08/2021, 13:30
  25. 106. #92 Directly Probing the Higgs-top Coupling at High Scales
    Roshan Mammen Abraham (Oklahoma State University)
    18/08/2021, 13:30
  26. 107. #93 Hubble Selection of the Weak Scale: possibility from QCD quantum phase transition
    TaeHun Kim (Seoul National University)
    18/08/2021, 13:30
  27. 108. #99 Test of the Realism in Particle Physics
    ANNA EFIMOVA (M.V. Lomonosov Moscow State University)
    18/08/2021, 13:30
  28. 111. #04 The muon magnetic moment: to the 2HDM and beyond
    Bernardo Gonçalves (CFTP/IST)
    19/08/2021, 07:30
  29. 112. #70 Higgs boson — multiparticle fields vs. Standard Model
    Tetiana Yushkevych (Odessa National Polytechnic University)
    19/08/2021, 07:30
  30. 135. #75 Study of the associative production of the Higgs boson, W- and Z-bosons using different event generators
    Munira Manashova
    19/08/2021, 07:30
  31. 113. #78 Looking for Beyond Standard Model short-lived particles with secondary production
    Krzysztof Jodłowski (NCBJ)
    19/08/2021, 07:30
  32. 114. #79 Suppressing beam background using FastBDT at Belle II
    Priyanka Cheema (University of Sydney/Belle II)
    19/08/2021, 07:30
  33. 115. #80 Constraining neutrino non-standard interactions from low energy neutrino experiments
    Yong Du (ITP CAS)
    19/08/2021, 07:30
  34. 116. #86 Search for Higgs Boson pair production in the HH -> bbll + MET final states with ATLAS detector at LHC
    Ali EL Moussaouy (Universite Hassan II, Ain Chock (MA))
    19/08/2021, 07:30
  35. 117. #88 Dark matter, muon anomalous magnetic moment, and the XENON1T excess
    Suvam Maharana (University of Delhi)
    19/08/2021, 07:30
  36. 118. #94 Nonstandard MSSM scenarios with a mass of CP-odd Higgs boson lighter than the top-quark mass
    Elena Fedotova (SINP MSU)
    19/08/2021, 07:30
  37. 28. Precision Calculations of Higgs Partial Widths and Decays
    Ayres Freitas (University of Pittsburgh)
    19/08/2021, 09:00
  38. 29. Q & A
    19/08/2021, 09:55
  39. 30. Higgs Boson Self-Interactions
    Caterina Vernieri (SLAC)
    19/08/2021, 10:20
  40. 31. Q & A
    19/08/2021, 11:15
  41. 32. Higgs as a Portal to BSM (I)
    Jessie Shelton (UIUC)
    19/08/2021, 11:40
  42. 33. Q & A
    19/08/2021, 12:35
  43. 34. Naturalness: Why is the Higgs Light ?
    Nathaniel Craig (UC Santa Barbara)
    20/08/2021, 09:00
  44. 35. Q & A
    20/08/2021, 09:55
  45. 36. Beyond the Standard Model Higgs Searches
    Jan Steggemann (EPFL)
    20/08/2021, 10:20
  46. 37. Q & A
    20/08/2021, 11:15
  47. 38. Higgs as a Portal to BSM (II)
    Jessie Shelton (UIUC)
    20/08/2021, 11:40
  48. 39. Q & A
    20/08/2021, 12:35
  49. 40. A history of the Higgs Mechanism
    Chris Quigg (Fermilab)
    23/08/2021, 09:00
  50. 41. Q & A
    23/08/2021, 09:55
  51. 42. Extending Higgs Measurement Capabilities (I)
    Maria Cepeda (CIEMAT)
    23/08/2021, 10:20
  52. 43. Q & A
    23/08/2021, 11:15
  53. 44. Role of the Higgs Sector in the Generation & Flavor Problem (I)
    Wolfgang Altmannshofer (UC Santa Cruz)
    23/08/2021, 11:40
  54. 45. Q & A
    23/08/2021, 12:35
  55. 46. Higgs EFT (I)
    Veronica Sanz (Universities of Valencia and Sussex)
    24/08/2021, 09:00
  56. 47. Q & A
    24/08/2021, 09:55
  57. 49. Extending Higgs Measurement Capabilities (II)
    Maria Cepeda (CIEMAT)
    24/08/2021, 10:20
  58. 48. Q & A
    24/08/2021, 11:15
  59. 50. Role of the Higgs Sector in the Generation & Flavor Problem (II)
    Wolfgang Altmannshofer (UC Santa Cruz)
    24/08/2021, 11:40
  60. 51. Q & A
    24/08/2021, 12:35
  61. 126. #102 New Generation RCE system for the Rd53 Pixel Front End chip readout
    Zijun Xu (SLAC)
    24/08/2021, 13:30
  62. 119. #74 Next-to SV resummed Drell-Yan cross section beyond leading-logarithm
    aparna sankar (IMSc, India)
    24/08/2021, 13:30
  63. 120. #81 On Next-to-Soft Resummation to Inclusive Cross-sections and Rapidity distributions
    POOJA MUKHERJEE (The Institute of Mathematical Sciences)
    24/08/2021, 13:30
  64. 121. #83 Search for non-resonant di-Higgs production in the $bb\gamma\gamma$ final state at 13 TeV with the ATLAS experiment
    Jannicke Pearkes (SLAC)
    24/08/2021, 13:30
  65. 122. #87 Is the local Lorentz invariance of general relativity implemented by gauge bosons that have their own Yang-Mills-like action?
    Kevin Cahill (University of New Mexico)
    24/08/2021, 13:30
  66. 123. #90 Combined Higgs measurements in SMEFT with the ATLAS experiment
    Rahul Balasubramanian (Nikhef)
    24/08/2021, 13:30
  67. 125. #98 The top quark electro-weak couplings after LHC Run 2
    María Moreno Llácer (IFIC, (CSIC - Univ. of Valencia))
    24/08/2021, 13:30
  68. 52. Higgs EFT (II)
    Veronica Sanz (Universities of Valencia and Sussex)
    25/08/2021, 09:00
  69. 53. Q & A
    25/08/2021, 09:55
  70. 54. Higgs at Future e+e- Colliders
    Patrizia Azzi (INFN/CERN)
    25/08/2021, 10:20
  71. 55. Q & A
    25/08/2021, 11:15
  72. 56. Higgs & Flavor - Experiment
    Phillip Urquijo (The University of Melbourne)
    25/08/2021, 11:40
  73. 57. Q & A
    25/08/2021, 12:35
  74. 58. Higgs & Baryogenesis
    Patrick Meade (Stonybrook Univ.)
    26/08/2021, 09:00
  75. 59. Q & A
    26/08/2021, 09:55
  76. 60. Higgs at Future Hadron Colliders
    Michele Selvaggi (CERN)
    26/08/2021, 10:20
  77. 61. Q & A
    26/08/2021, 11:15
  78. 62. Higgs & Gravity Connection ?
    Mikhail Shaposhnikov (EPFL)
    26/08/2021, 11:40
  79. 63. Q & A
    26/08/2021, 12:35
  80. 127. #08 Development of Future Electromagnetic Calorimeter Technologies and Applications for the Electron-Ion Collider with GEANT 4 Simulations
    Zhaozhong Shi (Massachusetts Institute of Technology)
    26/08/2021, 13:30
  81. 128. #72 Looking at overfitting within semi-supervision with Generative Adversarial Networks for physics searches at the LHC
    Thabang Lebese (University of the Witwatersrand)
    26/08/2021, 13:30
  82. 129. #82 Search for higgsinos with the ATLAS detector
    Michael Hank (University of Chicago)
    26/08/2021, 13:30
  83. 130. #85 Search for long-lived particles decaying into two muons in proton-proton collisions at sqrt(s)=13TeV using data collected with high rate triggers
    Hardik Routray (Rutgers University)
    26/08/2021, 13:30
  84. 131. #89 Calculation of Mass and Spin of Remnant Black Holes (RBH) from Compact Binary Mergers
    NITIKA SACHDEVA (BHAGWAN PARSHURAM INSTITUTE OF TECHNOLOGY)
    26/08/2021, 13:30
  85. 132. #91 Collider and GW complementarity in the 2HDM
    Ajay Kaladharan (Oklahoma State University)
    26/08/2021, 13:30
  86. 133. #95 Momentum Dependence in BSM Higgs couplings
    Pedro Bittar (University of São Paulo)
    26/08/2021, 13:30
  87. 124. #96 η Meson Properties in Chiral SU(3) Model
    Shivanshi Tiwari (Dr. B. R. Ambedkar National Institute of Technology Jalandhar)
    26/08/2021, 13:30
  88. 134. #97 On-Shell Symmetry Breaking and Higgs Mechanism
    Brad Bachu (Princeton University)
    26/08/2021, 13:30
  89. 64. The Higgs Boson & Cosmology
    Mikhail Shaposhnikov (EPFL)
    27/08/2021, 09:00
  90. 65. Q & A
    27/08/2021, 09:55
  91. 66. Higgs at Future Colliders: What Do We Learn ?
    Michael Peskin (SLAC)
    27/08/2021, 10:20
  92. 67. Q & A
    27/08/2021, 11:15
  93. 68. The View Ahead
    Howard Haber (University of California, Santa Cruz)
    27/08/2021, 11:40
  94. 69. Q & A
    27/08/2021, 12:35
  95. 136. #75 Study of the associative production of the Higgs boson, W- and Z-bosons using different event generators
    Munira Manashova
  96. 89. Calculation of Mass and Spin of Remnant Black Holes (RBH) from Compact Binary Mergers
    Ms Nitika Sachdeva (BHAGWAN PARSHURAM INSTITUTE OF TECHNOLOGY)

    As Gravitational waves were detected in 2017 by LIGO and VIRGO collaborations, it gained a lot of interest. In this project, we find the final mass and spin of the RBH using a mathematical model. After analyzing the data from GW190521, we find that the final spin is 0.77 and mass of the system is 141.17M. It is also found that they are inversely proportional and the data sets fit the model...

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  97. 91. Collider and GW complementarity in the 2HDM
    Ajay Kaladharan (Oklahoma State University)

    The knowledge of the Higgs potential is crucial for understanding the origin of the mass and thermal history of our universe. We show how collider measurements and observations of stochastic gravitational-wave signals can complement each other to explore the multiform scalar potential in the 2HDM. Accounting for theoretical and current experimental constraints, we analyze the key ingredients...

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  98. 90. Combined Higgs measurements in SMEFT with the ATLAS experiment
    Rahul Balasubramanian (Nikhef)

    Abstract:
    The experimental study of the Higgs boson at the Large Hadron Collider is rapidly progressing
    over the past decade. The hunt for the elusive boson is now evolving to measuring
    kinematics properties of the Higgs boson interacting with other particles.

    These detailed measurements provides an opportunity to study novel physical phenomena
    which occur at energies which are much...

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  99. 80. Constraining neutrino non-standard interactions from low energy neutrino experiments
    Yong Du (ITP CAS)

    The standard three-active neutrino oscillation picture would be modified in the presence of neutrino non-standard interactions (NSIs). In a model-independent manner, I shall review dimension-6 SMEFT operators that can induce such NSIs. Then, by focusing on terrestrial neutrino oscillation experiments Daya Bay, Double Chooz, RENO, T2K, NOvA, as well as T2HK, DUNE, JUNO and JUNO-TAO in the near...

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  100. 88. Dark matter, muon anomalous magnetic moment, and the XENON1T excess
    Mr Suvam Maharana (University of Delhi)

    Recently, the XENON1T detector observed an excess in its electronic recoil events in the low-energy region $\sim 1-5$ keV. We explore a possible dark matter (DM) explanation of the excess by invoking a simple extension of one real and two complex scalar fields comprising the dark sector beyond the Standard Model (SM). The light real scalar, while acting as a mediator between the SM sector and...

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  101. 8. Development of Future Electromagnetic Calorimeter Technologies and Applications for the Electron-Ion Collider with GEANT 4 Simulations
    Mr Zhaozhong Shi (Massachusetts Institute of Technology)

    The Electron-Ion Collider is a future collider planned to be built at BNL in about 2030. It will provide physicists with high luminosity and highly polarized beams with a wide range of nuclei species at different energies, covering an extensive kinematic range. The EIC physical goals include measuring the generalized parton distribution from Deeply Virtual Compton Scattering (DVCS) and Deeply...

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  102. 92. Directly Probing the Higgs-top Coupling at High Scales
    Roshan Mammen Abraham (Oklahoma State University)

    The top-quark Yukawa coupling $y_t$ is the strongest interaction of the Higgs boson in the Standard Model (SM) with $y_t \sim 1$. Due to its magnitude, it plays a central role in Higgs phenomenology in the SM and would be most sensitive to physics beyond the Standard Model. The top Yukawa can be directly measured at the LHC via top pair production in association with a Higgs boson...

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  103. 77. Gravitational Microlensing by Dark Matter Subhalos and Boson Stars
    Zihui Wang (NYU)

    Multiple microlensing surveys have been conducted to place limits on primordial black holes in nearby dark matter halos. We show that these existing limits on PBHs can be recast to constrain dark matter lenses that are more spatially extended than PBHs. As two representative cases, we examine NFW subhalos and boson stars, which are predicted in many models such as axion miniclusters and axion...

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  104. 70. Higgs boson — multiparticle fields vs. Standard Model
    Ms Tetiana Yushkevych (Odessa Polytechnic State University)

    In our view, the descriptio of Higgs boson in Standard Model has the following problems:
    • The Higgs boson in Standard Model has the weak isospin of ½. At the same time, the analysis of experimental data on its decay channels [1] lead to a conclusion that all of the observed final states of the decay products have integer weak isospin. Since the Lagrangian of the Standard Model is symmetric...

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  105. 93. Hubble Selection of the Weak Scale: possibility from QCD quantum phase transition
    Mr TaeHun Kim (Seoul National University)

    During inflation, a scalar field undergoes a quantum diffusion following the de-Sitter temperature. Aided by the greater Hubble rate at higher potential, the quantum diffusion can make the global distribution of the field climb up the potential. If the potential exhibits a criticality at the maximum point, the field distribution can be sharply located near there. We show a possibility from QCD...

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  106. 87. Is the local Lorentz invariance of general relativity implemented by gauge bosons that have their own Yang-Mills-like action?
    Prof. Kevin Cahill (University of New Mexico)

    General relativity with fermions has two independent symmetries: general coordinate invariance and local Lorentz invariance. General coordinate invariance is implemented by the Levi-Civita connection and by Cartan's tetrads both of which have as their action the Einstein-Hilbert action. It is suggested here that local Lorentz invariance is implemented not by a combination of the Levi-Civita...

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  107. 100. Lepton Flavor Violating Mixings at 2-Loop from the S-Matrix
    Mehmet Asim Gumus (Sissa)

    Standard Model has lepton flavor conservation as an accidental symmetry, and there has been a great deal of experimental effort went into detecting events leading to its violation (LFV) in search of signs for new physics. Muon decays into electrons and an electron & photon are two promising examples to such events in near future. In this ongoing work, we consider dimension 6 operators in...

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  108. 72. Looking at overfitting within semi-supervision with Generative Adversarial Networks for physics searches at the LHC
    Thabang Lebese (University of the Witwatersrand)

    The technique of semi-supervision can be used in searches for new physics where the signal plus background regions are not labelled. We employ semi-supervision but this technique has over-fitting issues. We resort to GANs to mimic a Monte Carlo (MC) simulation which is very expensive computationally in order to perform toy MC studies. We propose Generative Adversarial Networks (GANs) as our...

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  109. 78. Looking for Beyond Standard Model short-lived particles with secondary production
    Krzysztof Jodłowski (NCBJ)

    Many New Physics scenarios contain new long-lived particles, leading to interesting experimental signatures such as, e.g., highly displaced decay signatures. Examples of such models are so-called portals which include coupling of BSM particle to ordinary matter through a renormalizable interaction. Going beyond such simple realisations of BSM physics, one can introduce non-minimal particle...

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  110. 95. Momentum Dependence in BSM Higgs couplings
    Pedro Bittar (University of São Paulo)

    The presence of heavy new physics generally alters the Standard Model (SM) Higgs couplings predictions. In many models, we expect that momentum effects decouple as the new heavy states are integrated out. However, these effects can be important in situations of significant off-shellness at collider experiments. We study the momentum dependence of different beyond the SM scenarios, using form...

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  111. 102. New Generation RCE system for the Rd53 Pixel Front End chip readout
    Zijun Xu (SLAC)

    The RCE (Reconfigurable Cluster Element) platform is a general-purpose system-on-chip data acquisition system, which is broadly deployed in various experiments, including ATLAS. A new generation of bench-top RCE system, based on Xilinx UltraScale+ MPSoC, is developed to support the Rd53a/b module and system testing with high performance. The RCE system also serves as the primary platform for...

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  112. 74. Next-to SV resummed Drell-Yan cross section beyond leading-logarithm
    aparna sankar (IMSc, India)

    We present the resummed predictions for inclusive cross-section for Drell-Yan (DY)
    production up to next-to-next-to-leading logarithmic (NNLL) accuracy taking into account both
    soft virtual (SV) and next-to SV (NSV) threshold logarithms. We restrict ourselves
    to resummed contributions only from quark anti-quark initiated channels. The resummation is performed in Mellin-N space. We...

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  113. 94. Nonstandard MSSM scenarios with a mass of CP-odd Higgs boson lighter than the top-quark mass
    Elena Fedotova (SINP MSU)

    The possibility of a mass of a CP-odd Higgs boson, which is lighter than the top quark mass Mt, is considered within the MSSM framework where an effective theory at the scale Mt is the Two-Higgs-doublet model (THDM).

    The theoretical analysis was performed in the model approximation where only the effects of the third generation squark mixing are taken into account whenever the other...

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  114. 81. On Next-to-Soft Resummation to Inclusive Cross-sections and Rapidity distributions
    POOJA MUKHERJEE (The Institute of Mathematical Sciences)

    We present a formalism that resums threshold enhanced large logarithms to all orders in perturbation theory for the production of a pair of leptons in Drell-Yan process and of Higgs boson in gluon fusion as well as in bottom quark annihilation. As for the inclusive cross-section, the rapidity distribution is a prime candidate to benefit from threshold resummation, hence we apply the same...

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  115. 97. On-Shell Symmetry Breaking and Higgs Mechanism
    Brad Bachu (Princeton University)

    I present an on-shell description of symmetry breaking. Consider a group G in the UV, and a subgroup H in the IR. By demanding that the on-shell three particle amplitudes in the IR match consistently to their UV counterparts, I show how relations among their couplings and masses emerge, as well as an on-shell description of the Higgs mechanism.

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  116. 73. Optimization of sensitivity for the Di-Higgs search in $b\bar{b}l\nu qq$ final state in the LHC data recorded by the ATLAS detector in $pp$ collisions at $\sqrt{s}$ = 13 TeV
    Pratik Kafle (Reed College)

    We present a study to optimize the search for the Di-Higgs decay produced from gluon-gluon fusion with $b\bar{b}qql\nu$ as the final state in the ATLAS experiment at the LHC using Monte Carlo simulated sample. A big challenge in observing this event is due to enormous background contamination, the dominant of which is due to the decay of $t\bar{t}$ decay. We use ROOT and its built-in...

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  117. 86. Search for Higgs Boson pair production in the HH -> bbll + MET final states with ATLAS detector at LHC
    Ali EL Moussaouy (Universite Hassan II, Ain Chock (MA))

    A search for Higgs Boson pair production via vector boson fusion and decaying to b-quarks and WW/ZZ/𝛕𝛕 final states is underway uses the Run-2 dataset collected by ATLAS at √s = 13 TeV, corresponding to 139 fb of 2015-2018 providing a completely new signature in the Higgs sector. This search can give constraints on the parameters of the Higgs coupling with vector bosons, especially the...

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  118. 82. Search for higgsinos with the ATLAS detector
    Michael Hank (University of Chicago)

    Many supersymmetry models of general gauge mediation or gauge-mediated supersymmetry breaking predict gravitinos as the lightest supersymmetric particle with higgsino-dominated neutralinos as the next-to-lightest supersymmetric particle. This poster presents a search for pair-produced higgsinos each decaying to a Higgs boson and gravitino in the $b\bar{b}$ Higgs boson decay channel. The search...

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  119. 85. Search for long-lived particles decaying into two muons in proton-proton collisions at sqrt(s)=13TeV using data collected with high rate triggers
    Hardik Routray (Rutgers University)

    A search for displaced dimuon resonances is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment at the LHC in 2017--2018, corresponding to an integrated luminosity of 101 fb-1. The data sets used in this search were collected using a dedicated dimuon trigger stream with low transverse momentum thresholds, recorded at high rate by...

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  120. 83. Search for non-resonant di-Higgs production in the bbyy final state at 13 TeV with the ATLAS experiment
    Jannicke Pearkes (SLAC)

    he bbγγ channel is one of the most sensitive HH final states for measuring the Higgs self-coupling and di-Higgs production cross-section. This analysis capitalizes on the clean signature of the two photons in the final state combined with the high branching ratio of H→bb. This talk will present the latest non-resonant ATLAS HH→ bbγγ results with the full Run 2 dataset of 139 /fb at 13 TeV....

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  121. 101. Search for the Decay of the Higgs Boson to Charm Quarks with the ATLAS Experiment
    Zijun Xu (SLAC)

    The measurements at the Large Hadron Collider(LHC), so far, have established Higgs Yukawa couplings to Fermions are close to the Standard Model(SM) expectation for the 3rd Fermion generation. However, the rather ad hoc assumption of universal Yukawa coupling for other Fermion generations has a little experimental constraint. This is very challenging to probe due to small branching fractions,...

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  122. 75. Study of the associative production of the Higgs boson, W- and Z-bosons using different event generators
    Munira Manashova

    In this paper, the angular features of the signal and background processes of the associated production of the Higgs boson with W and Z bosons are presented. Signal and background processes are generated using the CompHEP, POWHEG and PYTHIA generators. Monte Carlo data are processed in the ROOT software. We also compared the shape of the distributions of kinematic variables obtained from...

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  123. 76. Study of variability in radiation from the Blazar source 3C454.3
    Kaustav Dipta Goswami (Tezpur University)

    Blazars are the most promising sources of high energy emission in the known universe. They are a subclass of Active Galactic Nuclei (AGN) where the emission originates from a relativistic jet aligned at or close to the line of sight. Their broad band spectrum is predominantly non-thermal, extending from radio to gamma-ray energies. Blazars show very high flux variability across the...

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  124. 79. Suppressing beam background using FastBDT at Belle II
    Ms Priyanka Cheema (University of Sydney/Belle II)

    The Belle II detector is situated inside an electron-positron collider in Japan called SuperKEKB and has been in operation since 2019. Like other B Factories of the past, Belle II is partly responsible for performing rare B decay analyses, and in such analyses, the variable $E_\mathrm{extra}$ is an important tool for signal yield extraction and background suppression, with many key analyses...

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  125. 99. Test of the Realism in Particle Physics
    Ms ANNA EFIMOVA (M.V. Lomonosov Moscow State University)

    The Realism [1], which is based on the properties of classical objects can be violated in quantum world. Assumption that observables of the system can jointly exist (Classical realism) and Locality can be wrong in Quantum Mechanics [2].

    Test of the Realism can be done with Wigner inequalities [3]. There should be three dichotomous variables in Wigner inequalities and these inequalities...

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  126. 4. The muon magnetic moment: to the 2HDM and beyond
    Bernardo Gonçalves (CFTP/IST)

    The recent measurement of the muon g−2 anomaly continues to defy a Standard Model explanation. Although such anomaly can be accommodated within the framework of two Higgs doublet models, one of the most popular scalar sector extensions, the allowed parameter space has been further restricted due to conflicts with several constraints. However, if one includes extra fermion content in the form...

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  127. 98. The top quark electro-weak couplings after LHC Run 2
    Dr María Moreno Llácer (IFIC (CSIC-Uni.Valencia))

    Recent measurements at the Large Hadron Collider allow for a robust and precise characterisation of the electro-weak interactions of the top quark. We present the results of a global analysis at next-to-leading order precision including LHC, LEP/SLD and Tevatron data in the framework of the Standard Model Effective Field Theory. We include a careful analysis of the impact of correlations among...

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  128. 96. η Meson Properties in Chiral SU(3) Model
    Ms Shivanshi Tiwari (Dr. B. R. Ambedkar National Institute of Technology Jalandhar)

    The topic is focused on the properties of η meson by following the approach
    of the chiral SU(3) model. We are dealing with the Lagrangian density of chiral
    SU(3) model that has exchange vector and scalar field terms and a hypothetical
    glueball field χ, to incorporate the scale invariance property of QCD. This phenomenological model explains effective meson interactions in the chiral limit...

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