First results in QCD with 2+1 light flavors using the fixed-point action

Details First results in QCD with 2+1 light flavors using the fixed-point action First results in QCD with 2+1 light flavors using the fixed-point action

2006-10-17

arxiv.org/abs/hep-lat/0610096v1

PoSLAT2006:178,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 6 figures, parallel talk at LATTICE 2006

Scientific paper

This is a progress report on 2+1 flavor simulation with the FP action on a lattice with spatial size L=1.2fm. Since m_{ud} is quite small in our simulation we are in the delta regime for the two light flavors where the low lying excitations are described by a quantum mechanical rotator. From here we extract the low energy constant F. We also measure the AWI mass and present results on numerical issues like low-mode averaging and autocorrelation times.

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