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Title: Antikaons in the extended relativistic mean-field models for neutron star

Abstract

We review the role of antikaons in recent versions of relativistic mean field models and focus on the interactions in which all parameters are obtained by fitting finite nuclear data and successfully applied to reproduce a variety of nuclear and neutron star (NS) properties. We show that the recently observed 1.97 solar mass NS can be explained in three ways: (i) A stiffer EoS with both antikaons (K{sup -}, K-bar {sup 0}), (ii) a relatively softer EoS with K{sup -} and (iii) a softer EoS with nucleon phase only.

Authors:
;  [1]
  1. Department of Physics, Indian Institute of Technology Roorkee, Roorkee - 247 667 (India)
Publication Date:
OSTI Identifier:
22075626
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1491; Journal Issue: 1; Conference: Conference on nuclear structure and dynamics 2012, Opatija (Croatia), 9-13 Jul 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANTIKAONS; ASTROPHYSICS; EQUATIONS OF STATE; KAONS MINUS; MEAN-FIELD THEORY; NEUTRON STARS; NUCLEAR MATTER; NUCLEONS; PARTICLE INTERACTIONS; RELATIVISTIC RANGE; REVIEWS; THERMODYNAMICS

Citation Formats

Gupta, Neha, and Arumugam, P. Antikaons in the extended relativistic mean-field models for neutron star. United States: N. p., 2012. Web. doi:10.1063/1.4764260.
Gupta, Neha, & Arumugam, P. Antikaons in the extended relativistic mean-field models for neutron star. United States. doi:10.1063/1.4764260.
Gupta, Neha, and Arumugam, P. Sat . "Antikaons in the extended relativistic mean-field models for neutron star". United States. doi:10.1063/1.4764260.
@article{osti_22075626,
title = {Antikaons in the extended relativistic mean-field models for neutron star},
author = {Gupta, Neha and Arumugam, P.},
abstractNote = {We review the role of antikaons in recent versions of relativistic mean field models and focus on the interactions in which all parameters are obtained by fitting finite nuclear data and successfully applied to reproduce a variety of nuclear and neutron star (NS) properties. We show that the recently observed 1.97 solar mass NS can be explained in three ways: (i) A stiffer EoS with both antikaons (K{sup -}, K-bar {sup 0}), (ii) a relatively softer EoS with K{sup -} and (iii) a softer EoS with nucleon phase only.},
doi = {10.1063/1.4764260},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1491,
place = {United States},
year = {2012},
month = {10}
}