Hyperons in neutron star matter within relativistic mean-field models

被引：4
|
作者：
Oertel, M. [1 ]
Providencia, C. [2 ]
Gulminelli, F. [3 ]
Raduta, A. R. [4 ]
机构：
[1] Univ Paris Diderot, Observ Paris, CNRS, LUTH, F-92195 Meudon, France
[2] Univ Coimbra, Dept Phys, P-3004516 Coimbra, Portugal
[3] ENSICAEN, UMR6534, LPC, F-14050 Caen, France
[4] IFIN HH, Bucharest, Romania
来源：
PHYSICS OF PARTICLES AND NUCLEI | 2015年 / 46卷 / 05期
关键词：
LAMBDA;
D O I：
10.1134/S1063779615050214
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Since the discovery of neutron stars with masses around 2M (aS (TM)) 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
收藏
页码：830 / 834
页数：5
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