Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2009-03-23
Few Body Syst.46:221-228,2009
Physics
High Energy Physics
High Energy Physics - Lattice
12 pages 2 figures, extended arguments and references added
Scientific paper
10.1007/s00601-009-0067-y
A new type of gauge fixing of the Coulomb gauge domain wall fermion system that reduces the fluctuation of the effective running coupling and the effective mass of arbitrary momentum direction including the region outside the cylinder cut region is proposed and tested in the $16^3\times 32\times 16$ gauge configurations of RBC/UKQCD collaboration. The running coupling at the lowest momentum point does not show infrared suppression and compatible with the experimental data extracted from the JLab collaboration. The source of the fluctuation of the effective mass near momentum $p=$0.6GeV region is expected to be due to the domain wall fermion zero modes.
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