26-31 July 2021
Mexico City
Mexico/General timezone
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Mexico City -
Hadron Decays, Production and Interactions

Proton decay amplitudes with physical chirally-symmetric quarks on a lattice.


  • Prof. Sergey SYRITSYN

Primary authors



Proton decays are sought as manifestation of baryon number violation predicted by Grand Unification. Their amplitudes depend on nonperturbative QCD, and we calculate them on a lattice with chirally symmetric quarks at the physical point for the first time. Our results largely agree with previous determinations done with heavy quark masses. Therefore, our findings solidify evidence against simple Grand-Unified theories as the absence of observed proton decays cannot be due to chiral QCD dynamics.