Improved Wilson QCD simulations with light quark masses

Abstract

We present results from simulations using 2 flavours of O(a)-improved Wilson quarks whose masses are about 1/3 of the physical strange quark mass. We present new data on the mass of the singlet pseudoscalar meson and evidence of the onset of chiral logarithms in the pion decay constant. The previously observed suppression of the topological susceptibility at lighter quark masses is confirmed. We report on the performance of the hybrid Monte Carlo algorithm at light quark masses.

9 pages, Revtex4, 10 figures

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Cited by in corpus (33)

• Theta dependence of SU(N) gauge theories in the presence of a topological term
• Schwarz-preconditioned HMC algorithm for two-flavour lattice QCD
• Light Hadron Masses from Lattice QCD
• QCD with light Wilson quarks on fine lattices (I): first experiences and physics results
• A lattice study of the masses of singlet 0++ mesons
• Properties of light scalar mesons from lattice QCD
• The eta' meson from lattice QCD
• f_K/f_pi in Full QCD with Domain Wall Valence Quarks
• A Numerical Study of Partially Twisted Boundary Conditions
• QCD with light Wilson quarks on fine lattices (II): DD-HMC simulations and data analysis
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• The decay constant of the first excited pion from lattice QCD
• A study of the eta and eta' mesons with improved staggered fermions
• An asymptotic formula for the pion decay constant in a large volume
• Chiral properties of two-flavor QCD in small volume and at large lattice spacing
• Extracting $F_{\pi }$ from small lattices: unquenched results
• eta' meson From Two Flavor Dynamical Domain Wall Fermions
• Hadronic decay of a scalar B meson from the lattice
• Topological susceptibility and ${\eta }^{\prime }$ meson mass from $N_f=2$ lattice QCD at the physical point
• Decay constants of P-wave heavy-light mesons from unquenched lattice QCD
• Energies of B_s meson excited states - a lattice study
• Effect of low-lying fermion modes in the $\epsilon$-regime of QCD
• Low and high spin mesons from $N_f=2$ Clover-Wilson lattices
• Determining F_pi from spectral sum rules
• Lattice QCD with light Wilson quarks
• Hard hadron spectroscopy
• Lattice QCD with mixed actions
• Searching for chiral logs in the static-light decay constant
• Hadron Spectrum from Dynamical Lattice QCD Simulations
• Light dynamical fermions on the lattice: toward the chiral regime of QCD
• Towards measuring the eta' mass with N_f=2+1 staggered fermions
• Partially Twisted Boundary Conditions in Lattice Simulations
• Pseudoscalar singlet physics with staggered fermions