Light meson spectrum with $N_f=2$ dynamical overlap fermions

Abstract

We present numerical simulation of QCD with two dynamical quark flavors described by the overlap fermion action on a $16^3\times 32\times (0.12\mathrm{fm}{)}^4$ lattice. We calculate pseudo-scalar masses and decay constants and investigate their chiral properties. We test the consistency of our data with the two-loop chiral perturbation theory predictions, which should also be valid at finite lattice spacings because of the exact chiral symmetry, including the finite size effects.

7 pages, 9 figures, contribution to XXV International Symposium on Lattice Field Theory, July 2007, Regensburg

References in corpus (6)

• Finite volume effects for meson masses and decay constants
• Finite volume QCD at fixed topological charge
• Improving meson two-point functions in lattice QCD
• Two-flavor QCD simulation with exact chiral symmetry
• Convergence of the chiral expansion in two-flavor lattice QCD
• pi pi scattering

Cited by in corpus (4)

• Chiral extrapolation of light resonances from one and two-loop unitarized Chiral Perturbation Theory versus lattice results
• Topological susceptibility in (2+1)-flavor lattice QCD with overlap fermion
• Physics results from dynamical overlap fermion simulations
• Spontaneous chiral symmetry breaking on the lattice