Fluctuations in the vicinity of the phase transition line for two flavor QCD

Details Fluctuations in the vicinity of the phase transition line for two flavor QCD Fluctuations in the vicinity of the phase transition line for two flavor QCD

2004-09-09

arxiv.org/abs/hep-lat/0409033v1

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 5 figures, Talk presented at Lattice2004(non-zero)

Scientific paper

10.1016/j.nuclphysbps.2004.11.33

We study the susceptibilities of quark number, isospin number and electric charge in numerical simulations of lattice QCD at high temperature and density. We discuss the equation of state for 2 flavor QCD at non-zero temperature and density. Derivatives of $\ln Z$ with respect to quark chemical potential $(\mu_q)$ are calculated up to sixth order. From this Taylor series, the susceptibilities are estimated as functions of temperature and $\mu_q$. Moreover, we comment on the hadron resonance gas model, which explains well our simulation results below $T_c$.

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