Conference Paper/Proceeding/Abstract 846 views
Numerical study of the equation of state for two flavor QCD at non-zero baryon density
S. Ejiri,
E. Laermann,
F. Karsch,
K. Redlich,
S.J. Hands 
,
O. Kaczmarek,
M. Doring,
Chris Allton
,
O. Kaczmarek,
M. Doring,
Chris Allton
Swansea University Author:
Chris Allton
Abstract
We discuss the equation of state (EoS) for two 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 pressure, quark number density and associated susceptibilities are est...
| Published: |
2004
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| Online Access: |
http://inspirehep.net/record/657928 |
| URI: | https://cronfa.swan.ac.uk/Record/cronfa28452 |
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| Abstract: |
We discuss the equation of state (EoS) for two 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 pressure, quark number density and associated susceptibilities are estimated as functions of temperature and $\mu_q$. 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 $(\mu_q, T)$ plane. Moreover, we comment on the hadron resonance gas model, which explains well our simulation results below $T_c$. |
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| College: |
Faculty of Science and Engineering |