Improved Wilson QCD simulations with light quark masses

Details Improved Wilson QCD simulations with light quark masses Improved Wilson QCD simulations with light quark masses

2004-03-04

arxiv.org/abs/hep-lat/0403007v1

Phys.Rev.D70:014501,2004

Physics

High Energy Physics

High Energy Physics - Lattice

9 pages, Revtex4, 10 figures

Scientific paper

10.1103/PhysRevD.70.014501

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.

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