Using nucleons to search for new physics

ORAL

Abstract

Nucleons as bound states of quarks and gluons provide many precise tests of the standard models. As targets in experiments, their detailed properties are needed in searches for physics beyond the standard model. This talk will summarize the current state of results of many of these properties obtained through large scale simulations of lattice QCD. These will include nucleon charges for direct detection dark matter experiments; the nucleon sigma terms; electric and magnetic form factors; the axial form factors needed to calculate the neutrino-nucleus cross section with precision needed to reach the design goals of the DUNE experiment; and radiative corrections to neutron decay for the extraction of the CKM matrix element V_ud.

*This work is supported by the U.S. Department of Energy,  Office of Science, Office of High Energy Physics under FWP grant no. LANLE83G, and by the LDRD program at Los Alamos. This research used resources at (i) the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231; (ii) the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725, through the ALCC program project LGT107 and HEP145, and the INCITE program project HEP133; (iii) the USQCD collaboration, which is funded by the Office of Science of the U.S. Department of Energy; (iv) Institutional Computing at Los Alamos National Laboratory; and resourcces provided by the USQCD collaboration. 

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Publication: YC Jang, R Gupta, T Bhattacharya, B Yoon, HW Lin, "Nucleon Isovector Axial Form Factors", Physical Review D 109 (1), 014503

O Tomalak, R Gupta, T Bhattacharya, "Confronting the axial-vector form factor from lattice QCD with MINERvA antineutrino-proton data", Physical Review D 108 (7), 074514

S. Park, R. Gupta, T. Bhattacharya, F. He, S. Mondal, H-W. Lin, and B. Yoon, "Flavor diagonal nucleon charges using clover fermions
on MILC HISQ ensembles", Physical Review D 112 (5), 054508 (30)

T Bhattacharya, V Cirigliano, R Gupta, E Mereghetti, JS Yoo, B Yoon, "Quark Chromo-Electric Dipole Moment Operator on the Lattice", Physical Review D 108 (7), 074507(22)

Presenters

  • Rajan Gupta

    • Los Alamos National Laboratory (LANL)

Authors

  • Rajan Gupta

    • Los Alamos National Laboratory (LANL)