Quark mass dependence of masses and decay constants of the pseudo-Goldstone bosons in QCD

Preprint

6 August 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-lat/0307002

Abstract

The dependence of the pseudoscalar meson masses and decay constants on sea and valence quark masses is compared to next-to-leading order (NLO) Chiral Perturbation Theory (ChPT). The numerical simulations with two light dynamical quark flavors are performed with the Wilson-quark lattice action at gauge coupling beta=5.1 and hopping parameters kappa=0.176, 0.1765, 0.177 on a 16^4 lattice. O(a) lattice artifacts are taken into account by applying chiral perturbation theory for the Wilson lattice action. The values of the relevant combinations of Gasser-Leutwyler constants L_4, L_5, L_6 and L_8 are estimated.

Keywords

NUMERICAL SIMULATIONS
PERTURBATION THEORY
MASSES AND DECAY
MASS DEPENDENCE
DECAY CONSTANTS
QUARK MASS
LATTICE
CHIRAL
QCD

All Related Versions

Version 1, 2003-07-02, ArXiv
Version 2, 2003-07-07, ArXiv
Version 3, 2003-08-06, ArXiv
Published version: The European Physical Journal C, 31 (2), 227.

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