Hyperonized neutron stars within the framework of the sigma-cut scheme
-
作者
X-RAY PULSAR; MAGNETIC-FIELD; QUANTUM-THEORY; ELECTRON-GAS; MATTER; DISCOVERY; REPEATER; EQUATION; MODELS; STATE
-
刊物名称
Eur. Phys. J. A
-
年、卷、文献号
2020, 56, 20
-
关键词
X-RAY PULSAR; MAGNETIC-FIELD; QUANTUM-THEORY; ELECTRON-GAS; MATTER; DISCOVERY; REPEATER; EQUATION; MODELS; STATE
-
摘要
The relativistic mean field theory is applied to study the macroscopic properties of the neutron star. We investigate the effects of the sigma-cut scheme when hyperons are included. In particular, we are interested in the question whether we can use the sigma-cut scheme to solve the so-called hyperon puzzle. Through careful choice of the parameter of the sigma-cut scheme, we are able to produce a maximum mass neutron star heavier than 2.01 M-sun. The role of the rho-omega interaction, which modifies the density dependence of the symmetry energy, is also investigated. We find that the anomalous magnetic moments cause neutral fermions to be spin-polarized within this framework.
