Quark-meson coupling model, nuclear matter constraints, and neutron star properties

被引:46
|
作者
Whittenbury, D. L. [1 ]
Carroll, J. D. [1 ]
Thomas, A. W. [1 ]
Tsushima, K. [1 ,2 ]
Stone, J. R. [3 ,4 ]
机构
[1] Univ Adelaide, CSSM & ARC Ctr Excellence Particle Phys Terascale, Sch Chem & Phys, Adelaide, SA 5005, Australia
[2] Univ Fed Rio Grande do Norte, Int Inst Phys, BR-59078400 Natal, RN, Brazil
[3] Univ Oxford, Dept Phys, Oxford OX1 3PU, England
[4] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
来源
PHYSICAL REVIEW C | 2014年 / 89卷 / 06期
基金
澳大利亚研究理事会;
关键词
EQUATION-OF-STATE; INCOMPRESSIBILITY; HYPERONS; RADIUS; FORCE; MASS;
D O I
10.1103/PhysRevC.89.065801
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
We explore the equation of state for nuclear matter in the quark-meson coupling model, including full Fock terms. The comparison with phenomenological constraints can be used to restrict the few additional parameters appearing in the Fock terms which are not present at the Hartree level. Because the model is based upon the in-medium modification of the quark structure of the bound hadrons, it can be readily extended to include hyperons and to calculate the equation of state of dense matter in beta equilibrium. This leads naturally to a study of the properties of neutron stars, including their maximum mass, radii, and density profiles.
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页数:18
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