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

Journal Article · Sat Oct 20 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4764260· OSTI ID:22075626

Gupta, Neha; Arumugam, P ^[1]

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1. Department of Physics, Indian Institute of Technology Roorkee, Roorkee - 247 667 (India)

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.

• OSTI ID: 22075626
• Journal Information: AIP Conference Proceedings, Vol. 1491, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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