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

Abstract

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 $T_c$.

arXiv comment3 pages, 5 figures, Talk presented at Lattice2004(non-zero)

References in corpus (5)

• The QCD thermal phase transition in the presence of a small chemical potential
• The Equation of State for Two Flavor QCD at Non-zero Chemical Potential
• The Pressure in 2, 2+1 and 3 Flavour QCD
• Hadron Resonance Mass Spectrum and Lattice QCD Thermodynamics
• Improved Staggered Fermion Actions for QCD Thermodynamics

Cited by in corpus (7)

• Relativistic nuclear collisions: Establishing a non-critical baseline for fluctuation measurements
• The QCD equation of state near T_0 within a quasi-particle model
• Equilibrium Statistical-Thermal Models in High-Energy Physics
• Baryon number fluctuations in chiral effective models and their phenomenological implications
• Non-perturbative dynamics and charge fluctuations in effective chiral models
• Study of the Fluctuations of Net-charge and Net-protons Using Higher Order Moments
• Thermodynamics and higher order moments in SU(3) linear $\sigma$-model with gluonic quasi-particles