Speaker
Rui Zhang
(Michigan state university)
Description
We present preliminary lattice calculations of strange and charm contributions to nucleon charges and moments. The scalar charge, axial charge, tensor charge, and unpolarized first moments are calculated on five clover-on-HISQ lattices covering three lattice spacings $a=\{0.06,0.09,0.12\}$~fm and three pion masses $M_\pi=\{310,220,130\}$~MeV. We renormalize the matrix elements with nonperturbative renormalization factors then apply chiral and continuum extrapolation to obtain results in the physical limit.
Authors
Rui Zhang
(Michigan state university)
Tanmoy Bhattacharya
(T-2)
Rajan Gupta
(Los Alamos National Lab)
Huey-Wen Lin
Santanu Mondal
Sungwoo Park
(Los Alamos National Laboratory)
Boram Yoon
(Los Alamos National Laboratory)
