Lattice QCD with mixed actions

Details Lattice QCD with mixed actions Lattice QCD with mixed actions

2004-11-03

arxiv.org/abs/hep-lat/0411005v2

JHEP0508:003,2005

Physics

High Energy Physics

High Energy Physics - Lattice

15 pages, 10 figures some minor modification to text and figures. Accepted for publication

Scientific paper

10.1088/1126-6708/2005/08/003

We discuss some of the implications of simulating QCD when the action used for the sea quarks is different from that used for the valence quarks. We present exploratory results for the hadron mass spectrum and pseudoscalar meson decay constants using improved staggered sea quarks and HYP-smeared overlap valence quarks. We propose a method for matching the valence quark mass to the sea quark mass and demonstrate it on UKQCD clover data in the simpler case where the sea and valence actions are the same.

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