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

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.

arXiv comment21 pages, 4 figures; discussion of the sea quark mass dependence changed, references added

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Cited by in corpus (15)

• Pion mass splitting and phase structure in Twisted Mass QCD
• Volume and Quark Mass Dependence of the Chiral Phase Transition
• The phase structure of lattice QCD with two flavours of Wilson quarks and renormalization group improved gluons
• Chiral perturbation theory for lattice QCD with a twisted mass term
• Light hadron spectroscopy in two-flavor QCD with small sea quark masses
• Hadron masses in QCD with one quark flavour
• Chiral perturbation theory at non-zero lattice spacing
• Unphysical Operators in Partially Quenched QCD
• Numerical simulations with two flavours of twisted-mass Wilson quarks and DBW2 gauge action
• Quark mass dependence of pseudoscalar masses and decay constants on a lattice
• Chiral perturbation theory for partially quenched twisted mass lattice QCD
• Connecting Lattice QCD with Chiral Perturbation Theory at Strong Coupling
• Hadron Spectrum from Dynamical Lattice QCD Simulations
• Nf=2 Lattice QCD and Chiral Perturbation Theory
• Unquenched simulations with N_f=2 light quark flavours