Neutron stars with antikaons: Comparison between two ways of extending the relativistic mean field models

2013 ◽  
Vol 87 (4) ◽  
Author(s):  
Neha Gupta ◽  
P. Arumugam
Keyword(s):  
Neutron Stars ◽  
Mean Field ◽  
Relativistic Mean Field ◽  
Mean Field Models

scholarly journals Massive neutron stars and Λ-hypernuclei in relativistic mean field models

2018 ◽  
Vol 42 (2) ◽  
pp. 025101 ◽  
Author(s):  
Ting-Ting Sun ◽  
Cheng-Jun Xia ◽  
Shi-Sheng Zhang ◽  
M. S. Smith
Keyword(s):  
Neutron Stars ◽  
Mean Field ◽  
Relativistic Mean Field ◽  
Mean Field Models

scholarly journals A Bayesian Analysis on Neutron Stars within Relativistic Mean Field Models

Particles ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 621-629
Author(s):  
Prasanta Char ◽  
Silvia Traversi ◽  
Giuseppe Pagliara
Keyword(s):  
Phase Transition ◽  
Equation Of State ◽  
Bayesian Analysis ◽  
Neutron Stars ◽  
Mean Field ◽  
Chiral Phase ◽  
Relativistic Mean Field ◽  
Mean Field Models ◽  
Adopted Model ◽  
Nuclear Incompressibility

We present a Bayesian analysis on the equation of state of neutron stars based on a class of relativistic mean field models. The priors on the equation of state are related to the properties of nuclear matter at saturation and the posteriors are obtained through the Bayesian procedure by exploiting recent astrophysical constraints on the mass–radius relations of neutron stars. We find indications of a tension (within the adopted model) between the prior on the nuclear incompressibility and its posterior which in turn seems to suggest a possible phase transition at about twice saturation density to a phase where the nucleon effective mass is strongly reduced. A possible relation with the chiral phase transition in dense matter is also discussed.

Naturalness of nonlinear $\sigma, \omega$ self-couplings in relativistic mean-field models for neutron stars

2003 ◽  
Vol 18 (2-3) ◽  
pp. 483-485 ◽  
Author(s):  
E. F. Lütz ◽  
S. S. Rocha ◽  
A. R. Taurines ◽  
G. F. Marranghello ◽  
M. Dillig ◽  
...  
Keyword(s):  
Neutron Stars ◽  
Mean Field ◽  
Relativistic Mean Field ◽  
Mean Field Models

THE INNER CRUST OF NEUTRON STARS IN RELATIVISTIC MEAN FIELD APPROACH

2008 ◽  
Vol 17 (09) ◽  
pp. 1765-1773 ◽  
Author(s):  
JIGUANG CAO ◽  
ZHONGYU MA ◽  
NGUYEN VAN GIAI
Keyword(s):  
Boundary Conditions ◽  
Neutron Stars ◽  
Mean Field ◽  
Bcs Theory ◽  
Neutron Density ◽  
Field Approach ◽  
Hartree Fock ◽  
Relativistic Mean Field ◽  
Density Distributions ◽  
Rmf Model

The microscopic properties and superfluidity of the inner crust in neutron stars are investigated in the framework of the relativistic mean field(RMF) model and BCS theory. The Wigner-Seitz(W-S) cell of inner crust is composed of neutron-rich nuclei immersed in a sea of dilute, homogeneous neutron gas. The pairing properties of nucleons in the W-S cells are treated in BCS theory with Gogny interaction. In this work, we emphasize on the choice of the boundary conditions in the RMF approach and superfluidity of the inner crust. Three kinds of boundary conditions are suggested. The properties of the W-S cells with the three kinds of boundary conditions are investigated. The neutron density distributions in the RMF and Hartree-Fock-Bogoliubov(HFB) models are compared.

scholarly journals Parameter counting in relativistic mean-field models

2000 ◽  
Vol 671 (1-4) ◽  
pp. 447-460 ◽  
Author(s):  
R.J. Furnstahl ◽  
Brian D. Serot
Keyword(s):  
Mean Field ◽  
Relativistic Mean Field ◽  
Mean Field Models
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