Pseudoscalar Meson in Two Flavors QCD with the Optimal Domain-Wall Fermion

We perform hybrid Monte Carlo (HMC) simulatons of two flavors QCD with the optimal domain-wall fermion (ODWF) on the 16^3 x 32 lattice (with lattice spacing a ~ 0.1 fm), for eight sea-quark masses corresponding to pion masses in the range 228-565 MeV. We calculate the mass and the decay constant of...

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Bibliographic Details
Published in:arXiv.org 2012-09
Main Authors: Ting-Wai Chiu, Tung-Han, Hsieh, Yao-Yuan, Mao, Collaboration, TWQCD
Format: Article
Language:English
Subjects:
Chiral dynamics
Computer simulation
Decay
Dependence
Fermions
Flavor (particle physics)
Perturbation theory
Quarks
Online Access:Get full text
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Summary:We perform hybrid Monte Carlo (HMC) simulatons of two flavors QCD with the optimal domain-wall fermion (ODWF) on the 16^3 x 32 lattice (with lattice spacing a ~ 0.1 fm), for eight sea-quark masses corresponding to pion masses in the range 228-565 MeV. We calculate the mass and the decay constant of the pseudoscalar meson, and compare our data with the chiral perturbation theory (ChPT). We find that our data is in good agreement with the sea-quark mass dependence predicted by the next-to-leading order (NLO) ChPT, and provides a determination of the low-energy constants \bar{l}_3 and \bar{l}_4, the pion decay constant, the chiral condensate, and the average up and down quark mass.
ISSN:2331-8422
DOI:10.48550/arxiv.1109.3675