Speaker
Yasumichi Aoki
(RIKEN)
Description
Proton decay matrix elements in QCD are indispensable quantities to constrain GUT models through the lower bound of the proton lifetime measured in the current and future underground experiments. Results obtained with lattice QCD so far have largest systematic uncertainty on the chiral extrapolation. We report on the relevant form factors of the dominant decay processes: a proton to a pseudoscalar and an anti-lepton, for every possible pseudoscalar state and three-quark operator, calculated on the physical-point, improved Wilson-fermion configurations generated by the PACS collaboration at the lattice spacing of 0.084fm.
Authors
Yasumichi Aoki
(RIKEN)
Yoshinobu Kuramashi
(University of Tsukuba)
Eigo Shintani
(Cocoro SB Corp.)
NATSUKI TSUKAMOTO
(Tohoku University)
