The quark mass and $μ$ dependence of the QCD chiral critical point

Details The quark mass and $μ$ dependence of the QCD chiral critical point The quark mass and $μ$ dependence of the QCD chiral critical point

2002-09-02

arxiv.org/abs/hep-lat/0209009v1

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 6 figures, Lattice2002(nonzerot)

Scientific paper

10.1016/S0920-5632(03)01601-3

In order to study the QCD chiral critical point we investigate Binder Cumulants of the chiral condensate. The results were obtained from simulations of 3 and 2+1 flavors of standard staggered fermions and 3 flavors of p4 improved staggered fermions. The quark masses used are close to the physical quark mass. To extract the dependence on quark mass and chemical potential we apply a new reweighting technique based on a Taylor expansion of the action. The reweighting accuracy is ${\cal O}(m)$ for the standard and ${\cal O}(m^2)$, ${\cal O}(\mu^2)$ for the p4 action.

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