Journal article 764 views
The equation of state for two flavor QCD at finite density
,
O. Kaczmarek,
Chris Allton
Nuclear Physics B - Proceedings Supplements, Volume: 129-130, Pages: 545 - 547
Swansea University Author:
Chris Allton
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1016/S0920-5632(03)02636-7
Abstract
We discuss the equation of state for QCD at non-zero temperature and density. We present results of a simulation for QCD with 2 flavors of p4-improved staggered fermions. Derivatives of $\ln {\cal Z}$ with respect to quark chemical potential $\mu_q$ up to fourth order are calculated, enabling estima...
| Published in: | Nuclear Physics B - Proceedings Supplements |
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| ISSN: | 09205632 |
| Published: |
2004
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa28432 |
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| Abstract: |
We discuss the equation of state for QCD at non-zero temperature and density. We present results of a simulation for QCD with 2 flavors of p4-improved staggered fermions. Derivatives of $\ln {\cal Z}$ 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. We also discuss the radius of convergence of the expansion as a function of temperature. 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. |
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| College: |
Faculty of Science and Engineering |
| Start Page: |
545 |
| End Page: |
547 |