### Numerical study of the equation of state for two flavor QCD at finite density

Ejiri S, Allton CR, Kaczmarek O, Hands SJ, Laermann E, Karsch F, Schmidt C (2003) .

Preprint | Englisch

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Autor*in
Abstract / Bemerkung
We discuss the equation of state for 2 flavor QCD at non-zero temperature anddensity. 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 quarknumber density increase in the vicinity of the phase transition temperature andthe susceptibilities start to develop a pronounced peak as $\mu_q$ isincreased. This suggests the presence of a critical endpoint in the $(T,\mu_q)$ plane.
Erscheinungsjahr
2003
Page URI
https://pub.uni-bielefeld.de/record/1942476

### Zitieren

Ejiri S, Allton CR, Kaczmarek O, et al. Numerical study of the equation of state for two flavor QCD at finite density. 2003.
Ejiri, S., Allton, C. R., Kaczmarek, O., Hands, S. J., Laermann, E., Karsch, F., & Schmidt, C. (2003). Numerical study of the equation of state for two flavor QCD at finite density
Ejiri, S., Allton, C. R., Kaczmarek, O., Hands, S. J., Laermann, E., Karsch, F., and Schmidt, C. (2003). Numerical study of the equation of state for two flavor QCD at finite density.
Ejiri, S., et al., 2003. Numerical study of the equation of state for two flavor QCD at finite density.
S. Ejiri, et al., “Numerical study of the equation of state for two flavor QCD at finite density”, 2003.
Ejiri, S., Allton, C.R., Kaczmarek, O., Hands, S.J., Laermann, E., Karsch, F., Schmidt, C.: Numerical study of the equation of state for two flavor QCD at finite density. (2003).
Ejiri, S., Allton, C. R., Kaczmarek, Olaf, Hands, S. J., Laermann, Edwin, Karsch, Frithjof, and Schmidt, Christian. “Numerical study of the equation of state for two flavor QCD at finite density”. (2003).

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### Quellen

arXiv: hep-lat/0309188