Calculation of PCAC mass with Wilson fermion using gradient flow

Atsushi Baba, Asobu Suzuki, Shinji Ejiri, Kazuyuki Kanaya, Masakiyo Kitazawa, Hiroshi Suzuki, Yusuke Taniguchi, Takashi Umeda

Research output: Contribution to journalConference articlepeer-review

Abstract

We calculate the PCAC mass for (2 + 1) flavor full QCD with Wilson-type quarks. We adopt the Small Flow-time eXpansion (SFtX) method based on the gradient flow which provides us a general way to compute correctly renormalized observables even if the relevant symmetries for the observable are broken explicitly due to the lattice regularization, such as the Poincáre and chiral symmetries. Our calculation is performed on heavy u, d quarks mass (mπ /mρ ≃ 0.63) and approximately physical s quark mass with fine lattice a ≃ 0.07 fm. The results are compared with those computed with the Schrödinger functional method.

Original languageEnglish
Article number191
JournalProceedings of Science
Volume363
Publication statusPublished - 2019
Event37th International Symposium on Lattice Field Theory, LATTICE 2019 - Wuhan, China
Duration: Jun 16 2019Jun 22 2019

All Science Journal Classification (ASJC) codes

  • General

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