Nonperturbative renormalization of overlap quark bilinears on 2+1 -flavor domain wall fermion configurations

Zhaofeng Liu, Ying Chen, Shao Jing Dong, Michael Glatzmaier, Ming Gong, Anyi Li, Keh Fei Liu, Yi Bo Yang, Jian Bo Zhang

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

We present renormalization constants of overlap quark bilinear operators on 2+1-flavor domain wall fermion configurations. This setup is being used by the χQCD Collaboration in calculations of physical quantities such as strangeness in the nucleon and the strange and charm quark masses. The scale-independent renormalization constant for the axial-vector current is computed using the Ward identity. The renormalization constants for scalar, pseudoscalar, and vector currents are calculated in the RI-MOM scheme. Results in the MS̄ scheme are also given. The step scaling function of quark masses in the RI-MOM scheme is computed as well. The analysis uses, in total, six different ensembles of three sea quarks, each on two lattices with sizes 243×64 and 323×64 at spacings a=(1.73GeV)-1 and (2.28GeV)-1, respectively.

Original languageEnglish
Article number034505
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume90
Issue number3
DOIs
StatePublished - Aug 19 2014

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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