47th SLAC Summer Institute (SSI 2019)

Contribution List

1. Welcome

Thomas Rizzo (SLAC)

12/08/2019, 09:00

Lectures

2. Flavor Physics Landscape

Zoltan Ligeti (LBNL)

12/08/2019, 09:05

Lectures

3. General Theory of Flavor (I)

Gudrun Hiller (TU Dortmund)

12/08/2019, 10:30

Lectures

4. Neutron Lifetime, g_A and V_ud

Albert Young (North Carolina State University)

12/08/2019, 11:45

Lectures

5. New Results from ATLAS & CMS

Attila Krasznahorkay (CERN)

12/08/2019, 14:45

Topical Conference

6. New Results from LHCb

Rafael Coutinho (Univ of Zurich)

12/08/2019, 15:25

Topical Conference

7. Belle II

Livio Lanceri (INFN Trieste)

12/08/2019, 16:25

Topical Conference

8. Muon g-2

Robert Carey (Boston Univ)

12/08/2019, 17:05

Topical Conference

12. EDM's & Sources of CP Violation

Jordy de Vries (Massachusetts Univ)

13/08/2019, 09:00

Lectures

13. General Theory of Flavor (II)

Gudrun Hiller (TU Dortmund)

13/08/2019, 10:30

Lectures

14. The Role of Lattice (I)

Aida El-Khadra (Univ of Illinois Urbana-Champaign)

13/08/2019, 11:45

Lectures

15. Rare K Decay Experiments

Yau Wah (Univ of Chicago)

14/08/2019, 09:00

Lectures

16. epsilon'/epsilon/e, epsilon_k & K0 Mixing

Ulrich Nierste (Karlsruhe Institute of Technology)

14/08/2019, 10:30

Lectures

17. The Role of Lattice (II)

Aida El-Khadra (Univ of Illinois Urbana-Champaign)

14/08/2019, 11:45

Lectures

18. D-Dbar Mixing & Rare Charm Decays

Marco Gersabeck (Univ of Manchester)

14/08/2019, 14:45

Lectures

19. Theory of B Decays

Wolfgang Altmannshofer (UC Santa Cruz)

14/08/2019, 16:00

Lectures

20. B Physics Experiments (I)

Timothy Gershon (Warwick Univ)

15/08/2019, 09:00

Lectures

21. Models of Quark and Lepton Mixing (I)

Lisa Everett (Univ of Wisconsin)

15/08/2019, 10:30

Lectures

22. Fits to EFT

Wolfgang Altmannshofer (UC Santa Cruz)

15/08/2019, 11:45

Lectures

23. Lepton Flavor Universality Anomalies

Benjamin Grinstein (UC San Diego)

15/08/2019, 14:45

Lectures

24. B Physics Experiments (II)

Timothy Gershon (Warwick Univ)

16/08/2019, 09:00

Lectures

25. Models of Quark and Lepton Mixing (II)

Lisa Everett (Univ of Wisconsin)

16/08/2019, 10:30

Lectures

26. CKM Fits, Unitarity & BSM

Enrico Lunghi (Indiana University)

16/08/2019, 11:45

Lectures

27. Top Properties & Rare Decays

Andreas Jung (Purdue Univ)

16/08/2019, 14:45

Lectures

28. Lepton Flavor Universality Tests

Simone Bifani (Univ of Birmingham)

16/08/2019, 16:00

Lectures

29. Higgs and Flavor

Jean-Baptiste de Vivie (IN2P3 LAL Orsay)

19/08/2019, 09:00

Lectures

30. Theory of Lepton Flavor Violation

Sacha Davidson (IN2P3 Strasbourg)

19/08/2019, 10:30

Lectures

31. Lepton Flavor Violation Experiments

James Miller (Boston Univ)

19/08/2019, 11:45

Lectures

32. Neutrino Masses & Mixing Angles

Mark Messier (Indiana Univ)

20/08/2019, 09:00

Lectures

33. Neutrino Fits, Tensions & Puzzles

Patrick Huber (Virginia Tech)

20/08/2019, 10:30

Lectures

34. Leptonic CP Violation & Leptogenesis

Sacha Davidson (IN2P3 Strasbourg)

20/08/2019, 11:45

Lectures

35. Theory of Neutrino Cross Sections

Alexander Friedland (SLAC)

20/08/2019, 14:45

Lectures

36. Measurements of Neutrino Cross Sections

Kevin McFarland (Univ of Rochester)

21/08/2019, 09:00

Lectures

37. Sterile Neutrinos from Mesons to LHC

Tao Han (Univ of Pittsburgh)

21/08/2019, 10:30

Lectures

38. Supernova Neutrinos

Kate Scholberg (Duke Univ)

21/08/2019, 11:45

Lectures

39. Future Long-Baseline Neutrinos

Edward Blucher (Univ od Chicago)

21/08/2019, 14:45

Lectures

40. High Energy Neutrino Astronomy

Francis Halzen (Univ of Wisconsin)

22/08/2019, 09:00

Lectures

41. Why Are There Three Generations ?

Hitoshi Murayama (UC Berkeley)

22/08/2019, 10:30

Lectures

42. Neutrinos and Dark Matter

Stefano Profumo (UC Santa Cruz)

22/08/2019, 11:45

Lectures

62. Team 9: b->sll BSM sensitivity

Felipe Garcia (LLR)

22/08/2019, 14:45

Projects

63. Team 13: 65 GeV top quark ?

Emma Oxford (Carnegie Mellon University)

22/08/2019, 15:05

Projects

64. Team 14: Leptonic g-2

Felix Kress (Imperial College (GB))

22/08/2019, 15:25

Projects

65. Team 15: Measuring tau g-2

Jannicke Pearkes (SLAC)

22/08/2019, 15:45

Projects

66. Team 16: VHE neutrinos from active galaxies

Guillaume Pietrzyk (EPFL)

22/08/2019, 16:25

Projects

67. Team 17: Supernovae neutrinos at DUNE

Sander Breur (SLAC)

22/08/2019, 16:45

Projects

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

Projects

43. Neutrinoless Double Beta Decay

Reina Maruyama (Yale Univ)

23/08/2019, 09:00

Lectures

44. Cosmological Constraints on Neutrinos

Lloyd Knox (UC Davis)

23/08/2019, 10:30

Lectures

45. Project and Contest Awards

Thomas Rizzo (SLAC)

23/08/2019, 11:45

Lectures

46. The Future of Flavor

Matthias Neubert (Univ of Mainz)

23/08/2019, 11:55

Lectures

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 $\varphi \sim (\mathbf{3},\mathbf{1},-1/3)$ and the isotriplet $\phi \sim (\mathbf{3},\mathbf{3},-1/3)$, 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...

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...

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...

54. Angular analysis of $B^{+}\to K^{+\ast }\mu \mu$ decays at LHCb

Renata Kopecna

Flavor-changing neutral current $b\to s$ 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...

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...

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,...

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...

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...

57. Long-distance effects in inclusive $\overline{B}\to X_d{\ell }^{+}{\ell }^{-}$ 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 $\overline{B}\to X_{s(d)}{\ell }^{+}{\ell }^{-}$ is particularly amenable to theoretical analysis, as integrated decay rates can be computed in an Operator Product Expansion. Local power...

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 ${\Lambda }_c^{+}$ through the three-body resonant decay ${\Lambda }_c^{+}\to p{K}^{-}{\pi }^{+}$. This is part of a long-term project intented to measure the magnetic and electric dipole moments (MDM/EDM) of charmed baryons (${\Lambda }_c^{+}$ and ${\Xi }_c^{+}$).

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

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...

9. On the Origin of the CMB

Dr Greg Hood (Retired)

Poster Social

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,...

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...

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...

10. Search for new physics in heavy baryon decays

Martina Ferrillo (University of Zurich)

Poster Social

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 ${\mathrm{\Lambda }}_b\to {\mathrm{\Lambda }}_{c}l\nu$ as a function of the squared di-lepton invariant mass and lepton helicity...

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...

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...

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...