Flavor Diagonal Nucleon Charges

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

Flavor Diagonal Nucleon Charges

High Energy Physics - Lattice 2022-03-21 v1

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

Abstract

This talk provides an update on the calculation of matrix elements of flavor diagonal axial, scalar and tensor quark bilinear operators between the nucleon ground state. The simulations are done using Wilson-clover fermions on a sea of eight 2+1+1-flavor HISQ ensembles generated by the MILC collaboration. We discuss the signal in the connected and disconnected contributions, calculation of the renormalization constants and mixing in the RI-sMOM scheme, and control over the simultaneous chiral-continuum-finite-volume fit used to extract the final charges.

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@article{arxiv.2203.09584,
  title  = {Flavor Diagonal Nucleon Charges},
  author = {Sungwoo Park and Tanmoy Bhattacharya and Rajan Gupta and Huey-Wen Lin and Santanu Mondal and Boram Yoon and Rui Zhang},
  journal= {arXiv preprint arXiv:2203.09584},
  year   = {2022}
}

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9 pages 8 figures. Contribution to the 38th International Symposium on Lattice Field Theory, LATTICE2021 26th-30th July, 2021

Flavor Diagonal Nucleon Charges

Abstract

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