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Numerical study of the equation of state for two flavor QCD at finite density / S. Ejiri, E. Laermann, F. Karsch, C. Schmidt, S.J. Hands, O. Kaczmarek, Chris Allton

Pages: 408 - 412

Swansea University Author: Chris Allton

Abstract

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 $\mu_q$ up to fourth order are calculated, enabling estimates of the pressure, quark number density and associated susceptibilities as functions of $...

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Published: 2003
Online Access: http://inspirehep.net/record/629443
URI: https://cronfa.swan.ac.uk/Record/cronfa28453
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Abstract: 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 $\mu_q$ up to fourth order are calculated, enabling estimates of the pressure, quark number density and associated susceptibilities as functions of $\mu_q$ via a Taylor series expansion. It is found that the fluctuations in the quark number density increase in the vicinity of the phase transition temperature and the susceptibilities start to develop a pronounced peak as $\mu_q$ is increased. This suggests the presence of a critical endpoint in the $(T, \mu_q)$ plane.
College: College of Science
Start Page: 408
End Page: 412