Proton decay amplitudes at the physical point with chirally symmetric quarks

26 Jul 2021, 14:30
15m
Oral presentation QCD in searches for physics beyond the Standard Model QCD in searches for physics beyond the Standard Model

Speaker

Sergey Syritsyn (JLab Theory Group)

Description

Proton decay is a long-sought manifestation of baryon number violation predicted by Grand Unification and expected due to baryon asymmetry of the Universe. Amplitudes of such decay in various channels depend on proton structure determined by nonperturbative QCD dynamics and have to be determined on a lattice. We report results of a recent calculation of these amplitudes using chirally symmetric quark action at the physical pion mass. While our lattices relatively coarse (a=0.2 and 0.14 fm), we don't observe any significant lattice spacing dependence.

Primary authors

Sergey Syritsyn (JLab Theory Group) Taku Izubuchi (Brookhaven National Laboratory) AMARJIT Soni (BNL) Jun-Sik Yoo

Presentation materials