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Study of finite temperature QCD with 2+1 flavors via Taylor expansion and imaginary chemical potential

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arxiv 1012.4694 v1 pith:DNWTLNM5 submitted 2010-12-21 hep-lat

Study of finite temperature QCD with 2+1 flavors via Taylor expansion and imaginary chemical potential

classification hep-lat
keywords chemicalpotentialexpansionflavorsimaginarylatticemassnonzero
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study QCD with 2+1 flavors at nonzero temperature and nonzero chemical potential. We present preliminary results obtained from lattice calculations performed with an improved staggered fermions action (p4-action) on lattice with temporal extent N_t = 4 on a line of constant physics with the strange quark mass adjusted to its physical value and a pion mass of about 220 MeV. We compute at imaginary chemical potential and compare with Taylor expansion results. We focus our study on a range of temperatures 0.94 < T/T_c < 1.08.

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