Proton decay matrix elements on PACS configurations

2025/01/23 by Tsuji, Ryutaro, Aoki, Yasumichi, Kuramashi, Yoshinobu +1
#FOS: Physical sciences #High Energy Physics - Lattice (hep-lat)

paper · doi:10.48550/arxiv.2501.13429

Abstract

We report the preliminary results of lattice computation for the proton decay matrix elements in N_f=2+1 physical point with Wilson-clover fermion. We perform it on the PACS configurations of 64⁴ lattice volume with lattice spacing a=0.085 fm, and carefully estimate the systematic uncertainties, especially for the excited state contamination and associated error of the renormalization constant with Regularization Independent (RI, Rome-Southampton) scheme. Our preliminary results of the twelve relevant transition modes in proton decay matrix element and comparison with other lattice results are presented.

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