Strange and charm contributions to nucleon charges and moments

Rui Zhang; Tanmoy Bhattacharya; Rajan Gupta; Huey-Wen Lin; Santanu Mondal; Sungwoo Park; Boram Yoon

Strange and charm contributions to nucleon charges and moments

High Energy Physics - Lattice 2021-09-06 v1

Authors: Rui Zhang , Tanmoy Bhattacharya , Rajan Gupta , Huey-Wen Lin , Santanu Mondal , Sungwoo Park , Boram Yoon

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, $M_\pi=\{310,220,130\}$ ~MeV. The renormalization factors are calculated nonperturbatively using the RI-sMOM scheme. We carry out a chiral and continuum extrapolation to obtain physical results.

Keywords

nucleon charges strange quark charm quark lattice qcd clover-on-hisq chiral extrapolation

Cite

@article{arxiv.2109.01191,
  title  = {Strange and charm contributions to nucleon charges and moments},
  author = {Rui Zhang and Tanmoy Bhattacharya and Rajan Gupta and Huey-Wen Lin and Santanu Mondal and Sungwoo Park and Boram Yoon},
  journal= {arXiv preprint arXiv:2109.01191},
  year   = {2021}
}

Comments

Proceeding for LATTICE2021 conference

Strange and charm contributions to nucleon charges and moments

Abstract

Keywords

Cite

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