Hyperons in neutron star matter within relativistic mean-field models

被引：0
|
作者：
M. Oertel
C. Providencia
F. Gulminelli
A. R. Raduta
机构：
[1] Universite Paris Diderot,LUTH, CNRS, Observatoire de Paris
[2] University of Coimbra,Department of Physics
[3] UMR6534,ENSICAEN
[4] LPC,undefined
[5] IFIN-HH,undefined
来源：
Physics of Particles and Nuclei | 2015年 / 46卷
关键词：
Neutron Star; Symmetry Energy; Meson Field; Mass Neutron Star; Nuclear Symmetry Energy;
D O I：
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中图分类号：
学科分类号：
摘要：
Since the discovery of neutron stars with masses around 2M⊙ the composition of matter in the central part of these massive stars has been intensively discussed. Within this paper we will (re)investigate the question of the appearance of hyperons. To that end we will perform parameter study within relativistic mean field models. We will show that it is possible to obtain high mass neutron stars with a substantial amount of hyperons and a spinodal instability at the onset of hyperons. The results depend strongly on the interaction in the hyperon-hyperon channels, on which only very little information is available from terrestrial experiments up to now.
引用
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页码：830 / 834
页数：4
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