Relativistic mean-field model with scaled hadron masses and couplings

被引：18

作者：

Khvorostukhin, A. S. ^{[1
,2
]}

Toneev, V. D. ^{[1
,3
]}

Voskresensky, D. N. ^{[3
,4
]}

机构：

[1] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[2] Moldavian Acad Sci, Inst Appl Phys, MD-2028 Kishinev, Moldova

[3] GSI Darmstadt, D-64291 Darmstadt, Germany

[4] Moscow Engn Phys Inst, RU-115409 Moscow, Russia

来源：

NUCLEAR PHYSICS A | 2008年 / 813卷 / 3-4期

关键词：

Nuclear matter; Equations of state of nuclear matter; Mesons in nuclear matter; Relativistic heavy-ion collisions; Particle and resonance production;

D O I：

10.1016/j.nuclphysa.2008.09.013

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Here we continue to elaborate properties of the relativistic mean-field based model (SHMC) proposed in [A.S. Khvorostukhin, V.D. Toneev. D.N. Voskresensky, Nucl. Phys. A 791 (2007) 180] where hadron masses and coupling constants depend on the sigma-meson field. The validity of approximations used in this reference is discussed. We additionally incorporate contribution of meson excitations to the equations of motion. We also estimate the effects of the particle width. It is demonstrated that the inclusion of the baryon-baryon hole and baryon-antibaryon loop terms, if performed perturbatively, destroys the consistency of the model. (C) 2008 Published by Elsevier B.V.

引用

页码：313 / 346

页数：34

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