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Isentropic equation of state of 2-flavor QCD
http://hdl.handle.net/10191/27667
http://hdl.handle.net/10191/276671eaa0f84-ef13-443a-b55b-ae20bf6e35c4
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-06-23 | |||||
タイトル | ||||||
タイトル | Isentropic equation of state of 2-flavor QCD | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Isentropic equation of state of 2-flavor QCD | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Ejiri, S.
× Ejiri, S.× Karsch, F.× Laermann, E.× Schmidt, C. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Using Taylor expansions of the pressure obtained previously in studies of 2-flavor QCD at nonzero chemical potential we calculate expansion coefficients for the energy and entropy densities up to O(μ 6 q ) in the quark chemical potential. We use these series in μ q /T to determine lines of constant entropy per baryon number (S/N B ) that characterize the expansion of dense matter created in heavy ion collisions. In the high temperature regime these lines are found to be well approximated by lines of constant μ q /T . In the low temperature phase, however, the quark chemical potential is found to increase with decreasing temperature. This is in accordance with resonance gas model calculations. Along the lines of constant S/N B we calculate the energy density and pressure. Within the accuracy of our present analysis we find that the ratio p/ϵ for T>T 0 as well as the softest point of the equation of state, (p/ϵ) min ≃0.075 , show no significant dependence on S/N B. | |||||
書誌情報 |
Physical Review D en : Physical Review D 巻 73, 号 5, p. 054506, 発行日 2006-03 |
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出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 15507998 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00773624 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevD.73.054506 | |||||
権利 | ||||||
権利情報 | (C) 2006 American Physical Society | |||||
著者版フラグ | ||||||
値 | publisher |