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Conference Paper/Proceeding/Abstract 567 views

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 Orcid Logo, O. Kaczmarek, Chris Allton Orcid Logo

Pages: 408 - 412

Swansea University Author: Chris Allton Orcid Logo

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