Update on Flavor Diagonal Nucleon Charges

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

Update on Flavor Diagonal Nucleon Charges

High Energy Physics - Lattice 2023-01-20 v1

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

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 sum of the connected and disconnected contributions for the up, down and strange quarks, control over fits to remove excited state contamination, and the simultaneous chiral-continuum fit used to extract the charges.

Keywords

flavor physics

Cite

@article{arxiv.2301.07890,
  title  = {Update on Flavor Diagonal Nucleon Charges},
  author = {Sungwoo Park and Tanmoy Bhattacharya and Rajan Gupta and Huey-Wen Lin and Santanu Mondal and Boram Yoon},
  journal= {arXiv preprint arXiv:2301.07890},
  year   = {2023}
}

Comments

9 pages, 9 figures, Contribution to the 39th International Symposium on Lattice Field Theory (Lattice2022). arXiv admin note: text overlap with arXiv:2203.09584

Update on Flavor Diagonal Nucleon Charges

Abstract

Keywords

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