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
[21]   A new method to study lattice QCD at finite temperature and chemical potential [J].
Fodor, Z ;
Katz, SD .
PHYSICS LETTERS B, 2002, 534 (1-4) :87-92
[22]   FERMIONS AND GAUGE VECTOR-MESONS AT FINITE TEMPERATURE AND DENSITY .1. FORMAL TECHNIQUES [J].
FREEDMAN, BA ;
MCLERRAN, LD .
PHYSICAL REVIEW D, 1977, 16 (04) :1130-1146
[23]   GLUON PLASMA WITH A MEDIUM-DEPENDENT DISPERSION-RELATION [J].
GORENSTEIN, MI ;
YANG, SN .
PHYSICAL REVIEW D, 1995, 52 (09) :5206-5212
[24]   Perturbative QCD at nonzero chemical potential:: Comparison with the large-Nf limit and apparent convergence -: art. no. 077901 [J].
Ipp, A ;
Rebhan, A ;
Vuorinen, A .
PHYSICAL REVIEW D, 2004, 69 (07) :4
[25]   Equation of state of deconfined matter within a dynamical quasiparticle description [J].
Ivanov, YB ;
Skokov, VV ;
Toneev, VD .
PHYSICAL REVIEW D, 2005, 71 (01) :014005-1
[26]   Pressure of hot QCD up to g6ln(1/g) -: art. no. 105008 [J].
Kajantie, K ;
Laine, M ;
Rummukainen, K ;
Schröder, Y .
PHYSICAL REVIEW D, 2003, 67 (10)
[27]   QCD AT FINITE TEMPERATURE [J].
KALASHNIKOV, OK .
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS, 1984, 32 (10) :525-583
[28]  
Kapusta J., 1994, Finite-Temperature Field Theory, P163
[29]   The pressure in 2, 2+1 and 3 flavour QCD [J].
Karsch, F ;
Laermann, E ;
Peikert, A .
PHYSICS LETTERS B, 2000, 478 (04) :447-455
[30]   Hadron resonance mass spectrum and lattice QCD thermodynamics [J].
Karsch, F ;
Redlich, K ;
Tawfik, A .
EUROPEAN PHYSICAL JOURNAL C, 2003, 29 (04) :549-556