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47th SLAC Summer Institute (SSI 2019)

12–23 Aug 2019
SLAC
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Contribution List

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  1. 1. Welcome
    Thomas Rizzo (SLAC)
    12/08/2019, 09:00
  2. 2. Flavor Physics Landscape
    Zoltan Ligeti (LBNL)
    12/08/2019, 09:05
  3. 3. General Theory of Flavor (I)
    Gudrun Hiller (TU Dortmund)
    12/08/2019, 10:30
  4. 4. Neutron Lifetime, g_A and V_ud
    Albert Young (North Carolina State University)
    12/08/2019, 11:45
  5. 5. New Results from ATLAS & CMS
    Attila Krasznahorkay (CERN)
    12/08/2019, 14:45
  6. 6. New Results from LHCb
    Rafael Coutinho (Univ of Zurich)
    12/08/2019, 15:25
  7. 7. Belle II
    Livio Lanceri (INFN Trieste)
    12/08/2019, 16:25
  8. 8. Muon g-2
    Robert Carey (Boston Univ)
    12/08/2019, 17:05
  9. 12. EDM's & Sources of CP Violation
    Jordy de Vries (Massachusetts Univ)
    13/08/2019, 09:00
  10. 13. General Theory of Flavor (II)
    Gudrun Hiller (TU Dortmund)
    13/08/2019, 10:30
  11. 14. The Role of Lattice (I)
    Aida El-Khadra (Univ of Illinois Urbana-Champaign)
    13/08/2019, 11:45
  12. 15. Rare K Decay Experiments
    Yau Wah (Univ of Chicago)
    14/08/2019, 09:00
  13. 16. epsilon'/epsilon/e, epsilon_k & K0 Mixing
    Ulrich Nierste (Karlsruhe Institute of Technology)
    14/08/2019, 10:30
  14. 17. The Role of Lattice (II)
    Aida El-Khadra (Univ of Illinois Urbana-Champaign)
    14/08/2019, 11:45
  15. 18. D-Dbar Mixing & Rare Charm Decays
    Marco Gersabeck (Univ of Manchester)
    14/08/2019, 14:45
  16. 19. Theory of B Decays
    Wolfgang Altmannshofer (UC Santa Cruz)
    14/08/2019, 16:00
  17. 20. B Physics Experiments (I)
    Timothy Gershon (Warwick Univ)
    15/08/2019, 09:00
  18. 21. Models of Quark and Lepton Mixing (I)
    Lisa Everett (Univ of Wisconsin)
    15/08/2019, 10:30
  19. 22. Fits to EFT
    Wolfgang Altmannshofer (UC Santa Cruz)
    15/08/2019, 11:45
  20. 23. Lepton Flavor Universality Anomalies
    Benjamin Grinstein (UC San Diego)
    15/08/2019, 14:45
  21. 24. B Physics Experiments (II)
    Timothy Gershon (Warwick Univ)
    16/08/2019, 09:00
  22. 25. Models of Quark and Lepton Mixing (II)
    Lisa Everett (Univ of Wisconsin)
    16/08/2019, 10:30
  23. 26. CKM Fits, Unitarity & BSM
    Enrico Lunghi (Indiana University)
    16/08/2019, 11:45
  24. 27. Top Properties & Rare Decays
    Andreas Jung (Purdue Univ)
    16/08/2019, 14:45
  25. 28. Lepton Flavor Universality Tests
    Simone Bifani (Univ of Birmingham)
    16/08/2019, 16:00
  26. 29. Higgs and Flavor
    Jean-Baptiste de Vivie (IN2P3 LAL Orsay)
    19/08/2019, 09:00
  27. 30. Theory of Lepton Flavor Violation
    Sacha Davidson (IN2P3 Strasbourg)
    19/08/2019, 10:30
  28. 31. Lepton Flavor Violation Experiments
    James Miller (Boston Univ)
    19/08/2019, 11:45
  29. 32. Neutrino Masses & Mixing Angles
    Mark Messier (Indiana Univ)
    20/08/2019, 09:00
  30. 33. Neutrino Fits, Tensions & Puzzles
    Patrick Huber (Virginia Tech)
    20/08/2019, 10:30
  31. 34. Leptonic CP Violation & Leptogenesis
    Sacha Davidson (IN2P3 Strasbourg)
    20/08/2019, 11:45
  32. 35. Theory of Neutrino Cross Sections
    Alexander Friedland (SLAC)
    20/08/2019, 14:45
  33. 36. Measurements of Neutrino Cross Sections
    Kevin McFarland (Univ of Rochester)
    21/08/2019, 09:00
  34. 37. Sterile Neutrinos from Mesons to LHC
    Tao Han (Univ of Pittsburgh)
    21/08/2019, 10:30
  35. 38. Supernova Neutrinos
    Kate Scholberg (Duke Univ)
    21/08/2019, 11:45
  36. 39. Future Long-Baseline Neutrinos
    Edward Blucher (Univ od Chicago)
    21/08/2019, 14:45
  37. 40. High Energy Neutrino Astronomy
    Francis Halzen (Univ of Wisconsin)
    22/08/2019, 09:00
  38. 41. Why Are There Three Generations ?
    Hitoshi Murayama (UC Berkeley)
    22/08/2019, 10:30
  39. 42. Neutrinos and Dark Matter
    Stefano Profumo (UC Santa Cruz)
    22/08/2019, 11:45
  40. 62. Team 9: b->sll BSM sensitivity
    Felipe Garcia (LLR)
    22/08/2019, 14:45
  41. 63. Team 13: 65 GeV top quark ?
    Emma Oxford (Carnegie Mellon University)
    22/08/2019, 15:05
  42. 64. Team 14: Leptonic g-2
    Felix Kress (Imperial College (GB))
    22/08/2019, 15:25
  43. 65. Team 15: Measuring tau g-2
    Jannicke Pearkes (SLAC)
    22/08/2019, 15:45
  44. 66. Team 16: VHE neutrinos from active galaxies
    Guillaume Pietrzyk (EPFL)
    22/08/2019, 16:25
  45. 67. Team 17: Supernovae neutrinos at DUNE
    Sander Breur (SLAC)
    22/08/2019, 16:45
  46. 68. Team 19: nu_e vs nu_mu particle ID with Machine Learning
    Martina Ferrillo (University of Zurich), Jonas Eschle
    22/08/2019, 17:05
  47. 43. Neutrinoless Double Beta Decay
    Reina Maruyama (Yale Univ)
    23/08/2019, 09:00
  48. 44. Cosmological Constraints on Neutrinos
    Lloyd Knox (UC Davis)
    23/08/2019, 10:30
  49. 45. Project and Contest Awards
    Thomas Rizzo (SLAC)
    23/08/2019, 11:45
  50. 46. The Future of Flavor
    Matthias Neubert (Univ of Mainz)
    23/08/2019, 11:55
  51. 50. A near-minimal leptoquark model for reconciling flavour anomalies and generating radiative neutrino masses
    Innes Bigaran (The University of Melbourne)

    We introduce two scalar leptoquarks, the SU$(2)_L$ isosinglet denoted $\phi\sim(\mathbf{3}, \mathbf{1}, -1/3)$ and the isotriplet $\varphi\sim(\mathbf{3}, \mathbf{3}, -1/3)$, to explain observed deviations from the standard model in semi-leptonic $B$-meson decays. We explore the regions of parameter space in which this model accommodates the persistent tensions in the decay observables...

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  52. 52. Almost Inert Higgs Bosons at the LHC
    Nicolas Neill (UTFSM/CCTVal (Chile))

    Non-minimal Higgs sectors are strongly constrained by the agreement of the measured couplings of the 125 GeV Higgs with Standard Model predictions. This agreement can be explained by an approximate $$\mathbb{Z}_2$$ symmetry under which the additional Higgs bosons are odd. This allows the additional Higgs bosons to be approximately inert, meaning that they have suppressed VEVs and suppressed...

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  53. 53. Amplitude relations in two body b-baryon decays using SU(3) symmetry
    Mr Shibasis Roy (The Institute of Mathematical Sciences, Chennai)

    The decays of $b$-baryons provide an interesting opportunity to test SU(3) flavor symmetries in the Standard Model. We study possible charmless decays of such anti-triplet $b$-baryons into an octet or decuplet baryon and a pseudoscalar meson using SU(3) flavor symmetry. The analysis holds for arbitrarily broken SU(3). By making some physical assumptions about the underlying transitions, we...

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  54. 54. Angular analysis of $B^+ \rightarrow K^{+*} \mu \mu$ decays at LHCb
    Renata Kopecna

    Flavor-changing neutral current $b\rightarrow s$ quark transitions are forbidden in the Standard Model at tree level and occur at the lowest order as so-called box or penguin processes. Angular observables of such transitions probe the underlying Lorentz structure of the Standard Model. These observables are of particular interest and suitable for theory comparison since the predictions are...

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  55. 11. Angular Analysis of the B -> K* mu mu decay at the LHCb Experiment
    Felix Kress (Imperial College (GB))

    Recent observations of B decays hint at discrepancies with predictions of the otherwise overwhelmingly successful Standard Model of Particle Physics. These observations are extremely intriguing, as they can be interpreted in a coherent way in a number of new physics models by introducing a new vector particle, such as a Z' or a leptoquark.

    This poster will concentrate on one of these...

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  56. 49. Are there elementary particles or not —— Inspiration from Buddhism book
    Dr Xiaoming Wan (Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences)

    In flavor physics, an elementary particle refers to a subatomic particle with no sub structure, thus not composed of other particles. This definition sounds a little bit self-contradictory. How can the particle be an elementary particle if it cannot be measured by itself. Buddhist teacher S.N. Goenka describes Buddhadharma as a pure science of mind and matter. In one of the Buddhist books,...

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  57. 56. B-Jet Energy Regression for Di-Higgs Searches
    Jannicke Pearkes (SLAC)

    Di-Higgs production (HH), where two Higgs are produced during a proton-proton collision, has yet to be observed at the Large Hadron Collider. This process has an extremely small cross-section and its observation will be one of the main goals of the High-Luminosity LHC. As the cross-section is so small, di-Higgs searches typically look for the case where at least one Higgs decays to the final...

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  58. 58. Design and Operation of the Forward Time Projection Chambers at NA61/SHINE
    Brant Rumberger

    Hadron production measurements are critical for making informed predictions of neutrino flux in accelerator-based neutrino experiments. The NA61/SHINE experiment at CERN's Super Proton Synchrotron (SPS) measures differential and total production cross sections for various reactions relevant to the generation of neutrino beams. Recently, to cover the previously un-instrumented forward region of...

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  59. 57. Long-distance effects in inclusive $\bar{B} \to X_d \ell^+ \ell^-$ decay
    Jack Jenkins (Indiana University)

    Quark decays mediated by neutral currents are forbidden at tree level in the SM and are therefore sensitive to BSM corrections via indirect effects. The manifestation of these currents in inclusive decays such as $\bar{B} \to X_{s(d)} \ell^+ \ell^-$ is particularly amenable to theoretical analysis, as integrated decay rates can be computed in an Operator Product Expansion. Local power...

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  60. 51. Measurement of Λ_c+ polarization with an amplitude analysis of Λ_c+→p K- π+ to obtain the magnetic dipole moment of charmed baryons
    Ms Elisabeth Niel (LAL)

    In this works we aim at using LHCb data to measure the polarization of $Λ_c^+$ through the three-body resonant decay $Λ_c^+→pK^- π^+$. This is part of a long-term project intented to measure the magnetic and electric dipole moments (MDM/EDM) of charmed baryons ($Λ_c^+$ and $Ξ_c^+$).

    The experimental method consists in measuring the polarization vector of the incoming particle and the...

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  61. 60. Neutrino Directionality at DUNE
    Olexiy Dvornikov (University of Hawaii at Manoa)

    Liquid argon time-projection chambers (LArTPCs) are excellent neutrino detectors. Often neutrino energies are inferred by summing up the deposited energy in the detector. A LArTPC, on the other hand, has an extra handle - crisp tracks. Kinematic constraints, paired with traditional calorimetry, improve the energy reconstruction and allow for novel searches. This poster focuses on neutrino...

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  62. 9. On the Origin of the CMB
    Dr Greg Hood (Retired)

    It is proposed that the source of the CMB arises from microwaves emitted from atoms at very low temperatures. The metric employed, an exact solution of the Einstein field equations, embraces the electrical interaction as well as the gravitational interaction. It is applied semi-classically to atomic spectra. The result is that a number of elements – hydrogen, nitrogen, carbon, chlorine, iron,...

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  63. 47. PHYSICS BEYOND SM WITH KAONS FROM NA62
    Patrizia Cenci (INFN Perugia (IT))

    The decay K+→π+vv, with a very precisely predicted branching ratio of less than 10exp(-10), is one of the best candidates to reveal indirect effects of new physics at the highest mass scales. The NA62 experiment at the CERN SPS is designed to measure the branching ratio of the K+→π+vv with a decay-in-flight technique. NA62 took data so far in 2016-2018. Statistics collected in 2016 allowed...

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  64. 61. PRIMARY VERTEX RECONSTRUCTION AND SELECTION WITH THE ATLAS EXPERIMENT
    Valentina Cairo (SLAC)

    Increasing luminosity at the Large Hadron Collider (LHC) poses a challenge for primary vertex reconstruction and hard scatter (HS) identification in ATLAS. A rate of 70 or more inelastic proton-proton collisions per beam crossing was observed during the recently-completed Run 2 and even higher vertex density, or pile-up (PU), is expected in the future Run 3.

    To meet this challenge and...

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  65. 10. Search for new physics in heavy baryon decays
    Martina Ferrillo (University of Zurich)

    Semi-leptonic b-baryon decays provide a unique means to investigate Lepton Flavour Universality (LFU) at the LHCb experiment. Sensitivity to New Physics (NP) contributions could show up in the angular observables of the decay products. In this work, the decay amplitude of the process $\Lambda_{b}\to\Lambda_{c}\, l\,\nu$ as a function of the squared di-lepton invariant mass and lepton helicity...

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  66. 48. SEARCHES FOR EXOTIC DECAYS WITH NA62
    Patrizia Cenci (INFN Perugia (IT))

    The features of the NA62 experiment at the CERN SPS – high-intensity setup, trigger-system flexibility, high-frequency tracking of beam particles, redundant particle identification, and
    ultra-high-efficiency photon vetoes – make NA62 particularly suitable to search for long-lived, weakly-coupled particles within Beyond the Standard Model (BSM) physics, using kaon and pion decays as well as...

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  67. 59. Signatures of complex scalar field with chemical potential in primordial non-gaussianities
    Arushi Bodas (University of Maryland-College Park)

    Non-gaussianity in the primordial fluctuations is a promising sign of new physics beyond minimal inflationary models and is a probe into physics at energies as high as inflationary Hubble scale. Massive particles, through their coupling with inflaton field, can leave characteristic signatures in primordial non-gaussianities containing information about their mass and spin. The signal generally...

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  68. 55. zfit: scalable pythonic fitting
    Jonas Eschle

    Statistical modelling is a key element for HEP analysis. Currently, most of this modelling is performed with the ROOT/RooFit toolkit which is written in C++ and poorly integrated with the scientific Python ecosystem. zfit is a new alternative to RooFit, written in pure Python while still allowing to use HEP standard minimizers and file formats. Built on top of TensorFlow (a modern, high...

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