Thermodynamics of two-colour QCD

Details Thermodynamics of two-colour QCD Thermodynamics of two-colour QCD

1998-09-10

arxiv.org/abs/hep-lat/9809059v1

Nucl.Phys.Proc.Suppl. 73 (1999) 441-443

Physics

High Energy Physics

High Energy Physics - Lattice

LATTICE98(hightemp), 3 pages, LaTeX2e File, 5 EPS-figures, espcrc2.sty

Scientific paper

10.1016/S0920-5632(99)85098-1

We discuss the thermodynamics of two-colour QCD with four flavours of staggered quarks on 8^3x4 and 16^3x4 lattices. In our simulations we use the Naik action for the fermions and a (1,2) tree-level improved gauge action. We analyze the deconfinement and chiral phase transitions for four different quark masses (m=0.1,0.05,0.025,0.015). Contrary to three-colour QCD the peak in the Polyakov loop susceptibility decreases with decreasing quark mass. This reflects an early breaking of the string in the heavy quark potential, which we verify explicitly by calculating the heavy quark potential at finite temperature using Polyakov loop correlations.

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