Quasi-particle description of strongly interacting matter:: Towards a foundation

被引：28
作者：
Bluhm, M.
Kaempfer, B.
Schulze, R.
Seipt, D.
机构：
[1] Rossendorf Inc, Forschungszentrum Rossendorf EV, Nucl Engn & Analyt Inc, D-01314 Dresden, Germany
[2] Tech Univ Dresden, Inst Theoret Phys, D-01062 Dresden, Germany
来源：
EUROPEAN PHYSICAL JOURNAL C | 2007年 / 49卷 / 01期
关键词：
D O I：
10.1140/epjc/s10052-006-0056-y
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We confront our quasi-particle model for the equation of state of strongly interacting matter with recent first-principle QCD calculations. In particular, we test its applicability at finite baryon densities by comparing with Taylor expansion coefficients of the pressure for two quark flavours. We outline a chain of approximations starting from the Phi-functional approach to QCD which motivates the quasi-particle picture.
引用
收藏
页码：205 / 211
页数：7
相关论文
共 59 条
[1]   Thermodynamics of two flavor QCD to sixth order in quark chemical potential -: art. no. 054508 [J].
Allton, CR ;
Döring, M ;
Ejiri, S ;
Hands, SJ ;
Kaczmarek, O ;
Karsch, F ;
Laermann, E ;
Redlich, K .
PHYSICAL REVIEW D, 2005, 71 (05) :1-20
[2]   Equation of state for two flavor QCD at nonzero chemical potential [J].
Allton, CR ;
Ejiri, S ;
Hands, SJ ;
Kaczmarek, O ;
Karsch, F ;
Laermann, E ;
Schmidt, C .
PHYSICAL REVIEW D, 2003, 68 (01)
[3]   QCD thermal phase transition in the presence of a small chemical potential [J].
Allton, CR ;
Ejiri, S ;
Hands, SJ ;
Kaczmarek, O ;
Karsch, F ;
Laermann, E ;
Schmidt, C ;
Scorzato, L .
PHYSICAL REVIEW D, 2002, 66 (07)
[4]   Hard-thermal-loop resummation of the free energy of a hot gluon plasma [J].
Andersen, JO ;
Braaten, E ;
Strickland, M .
PHYSICAL REVIEW LETTERS, 1999, 83 (11) :2139-2142
[5]   Hard-thermal-loop resummation of the thermodynamics of a hot gluon plasma [J].
Andersen, JO ;
Braaten, E ;
Strickland, M .
PHYSICAL REVIEW D, 2000, 61 (01)
[6]   Hard-thermal-loop resummation of the free energy of a quark-gluon plasma [J].
Andersen, JO ;
Braaten, E ;
Strickland, M .
PHYSICAL REVIEW D, 2000, 61 (07)
[7]   3-LOOP FREE-ENERGY FOR HIGH-TEMPERATURE QED AND QCD WITH FERMIONS [J].
ARNOLD, P ;
ZHAI, CX .
PHYSICAL REVIEW D, 1995, 51 (04) :1906-1918
[8]   SELF-CONSISTENT APPROXIMATIONS IN MANY-BODY SYSTEMS [J].
BAYM, G .
PHYSICAL REVIEW, 1962, 127 (04) :1391-&
[9]   Entropy of the QCD plasma [J].
Blaizot, JP ;
Iancu, E ;
Rebhan, A .
PHYSICAL REVIEW LETTERS, 1999, 83 (15) :2906-2909
[10]   The quark-gluon plasma: collective dynamics and hard thermal loops [J].
Blaizot, JP ;
Iancu, E .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2002, 359 (5-6) :355-528
123456