|
|||||
|
|
Equation of state of nuclear matter and neutron stars in a hadron mass scaling frame |
|
| Authors: | B?Liu H?Guo V?Greco U?Lombardo |
| Institution: | (1) Institute of High Energy Physics, Chinese Academy of Sciences, 100039 Beijing, PRC;(2) Department of Technical Physics, Peking University, 100871 Beijing, PRC;(3) Laboratori Nazionali del Sud, Catania and University of Catania, Via S. Sofia 44, I-95123 Catania, Italy;(4) Cyclotron Institute, Texas A & M University, College Station, TX, USA |
| Abstract: | The equation of state for nuclear matter at finite temperature and the properties of neutron stars are studied starting from an effective Lagrangian in the framework of the relativistic mean field theory. We find that the empirical properties of nuclear matter can be reproduced if the medium effects are mainly described in terms of the Brown-Rho mass scaling on top of the Bonn potential used as the underlying bare nucleon-nucleon interaction. In particular a correct symmetry energy at saturation density is obtained. The extrapolation of the equation of state to neutron matter and some predictions for the neutron-star masses are finally discussed and compared with other nucleonic many-body approaches.PACS: 21.65. + f Nuclear matter - 21.30.Fe Forces in hadronic systems and effective interactions - 97.60.Jd Neutron stars |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |