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arXiv · 2109.01191

Strange and charm contributions to nucleon charges and moments

Rui Zhang·Tanmoy Bhattacharya·Rajan Gupta·Huey-Wen Lin·Santanu Mondal·Sungwoo Park·Boram Yoon
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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, $M_π=\{310,220,130\}$~MeV. The renormalization factors are calculated nonperturbatively using the RI-sMOM scheme. We carry out a chiral and continuum extrapolation to obtain physical results.

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Rui Zhang, Tanmoy Bhattacharya, Rajan Gupta, Huey-Wen Lin, Santanu Mondal, Sungwoo Park, Boram Yoon. 2021-09-02. Strange and charm contributions to nucleon charges and moments. https://arxiv.org/abs/2109.01191

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