Strange quark matter with dynamically generated quark masses

被引:133
作者
Buballa, M [1 ]
Oertel, M [1 ]
机构
[1] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
关键词
strange quark matter; dynamical quark masses;
D O I
10.1016/S0370-2693(99)00533-X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Bulk properties of strange quark matter (SQM) are investigated within the SU(3) Nambu-Jona-Lasinio model. In the chiral limit the model behaves very similarly to the MIT bag model which is often used to describe SQM. However, when we introduce realistic current quark masses, the strange quark becomes strongly disfavored, because of its large dynamical mass. We conclude that SQM is not absolutely stable. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:261 / 267
页数:7
相关论文
共 33 条
[1]   Color-flavor locking and chiral symmetry breaking in high density QCD [J].
Alford, M ;
Rajagopal, K ;
Wilczek, F .
NUCLEAR PHYSICS B, 1999, 537 (1-3) :443-458
[2]   QCD at finite baryon density: nucleon droplets and color superconductivity [J].
Alford, M ;
Rajagopal, K ;
Wilczek, F .
PHYSICS LETTERS B, 1998, 422 (1-4) :247-256
[3]   THERMODYNAMIC PROPERTIES OF HOT NUCLEONIC MATTER [J].
BARRANCO, M ;
BUCHLER, JR .
PHYSICAL REVIEW C, 1980, 22 (04) :1729-1737
[4]   STRANGE MATTER EQUATION OF STATE IN THE QUARK MASS-DENSITY-DEPENDENT MODEL [J].
BENVENUTO, OG ;
LUGONES, G .
PHYSICAL REVIEW D, 1995, 51 (04) :1989-1993
[5]   STRANGENESS MIXING AND QUENCHING IN THE NAMBU-JONA-LASINIO MODEL [J].
BERNARD, V ;
JAFFE, RL ;
MEISSNER, UG .
NUCLEAR PHYSICS B, 1988, 308 (04) :753-790
[6]   COLLAPSED NUCLEI [J].
BODMER, AR .
PHYSICAL REVIEW D, 1971, 4 (06) :1601-&
[7]   The problem of matter stability in the Nambu-Jona-Lasinio model [J].
Buballa, M .
NUCLEAR PHYSICS A, 1996, 611 (04) :393-408
[8]   EQUATION OF STATE OF STRANGE QUARK MATTER AND STRANGE STAR [J].
CHAKRABARTY, S .
PHYSICAL REVIEW D, 1991, 43 (02) :627-630
[9]   BARYON STRUCTURE IN BAG THEORY [J].
CHODOS, A ;
JAFFE, RL ;
JOHNSON, K ;
THORN, CB .
PHYSICAL REVIEW D, 1974, 10 (08) :2599-2604
[10]   Phase transition and thermodynamics of a hot and dense system in a scaled NJL model [J].
Cugnon, J ;
Jaminon, M ;
VandenBossche, B .
NUCLEAR PHYSICS A, 1996, 598 (04) :515-538