paper

Strange and charm contributions to nucleon charges and moments

arXiv:2109.01191

Abstract

We present preliminary results for strange and charm contributions to nucleon charges and moments. The scalar, axial and tensor charges, and unpolarized first moments are calculated using clover-on-HISQ formulation and cover four lattice spacings, $a = {0.06, 0.09, 0.12, 0.15}$ ~fm, and three pion masses, $M_{I ¨} = {310, 220, 130}$ ~MeV. The renormalization factors are calculated nonperturbatively using the RI-sMOM scheme. We carry out a chiral and continuum extrapolation to obtain physical results.

Proceeding for LATTICE2021 conference