Solution of the hyperon puzzle within a relativistic mean-field model

被引：95

作者：

Maslov, K. A. ^{[1
]}

Kolomeitsev, E. E. ^{[2
]}

Voskresensky, D. N. ^{[1
]}

机构：

[1] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

[2] Matej Bel Univ, SK-97401 Banska Bystrica, Slovakia

来源：

PHYSICS LETTERS B | 2015年 / 748卷

关键词：

EQUATION-OF-STATE; SCALED HADRON MASSES; NEUTRON-STAR; NUCLEAR-MATTER; DENSE MATTER;

D O I：

10.1016/j.physletb.2015.07.032

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The equation of state of cold baryonic matter is studied within a relativistic mean-field model with hadron masses and coupling constants depending on the scalar field. All hadron masses undergo a universal scaling, whereas the couplings are scaled differently. The appearance of hyperons in dense neutron star interiors is accounted for, however the equation of state remains sufficiently stiff if the reduction of the phi meson mass is included. Our equation of state matches well the constraints known from analyses of the astrophysical data and particle production in heavy-ion collisions. (C) 2015 The Authors. Published by Elsevier B.V.

引用

页码：369 / 375

页数：7

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