Kaon properties in (proto)neutron stars

Abstract

The modification on kaon and antikaon properties of in the interior of (proto-)neutron stars is investigated using a chiral SU(3) model. The parameters of the model are fitted to nuclear matter saturation properties, baryon octet vacuum masses, hyperon optical potentials and low energy a kaon-nucleon scattering lengths. We study the kaon/antikaon medium modification and explore the possibility of antikaon condensation in (proto-)neutron star matter at zero as well as finite temperature/entropy and neutrino content. The effect of hyperons on kaon and antikaon optical potentials is also investigated at different stages of the neutron star evolution.

17 pages including 4 figures

References in corpus (13)

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• Open bottom mesons in asymmetric nuclear matter in presence of strong magnetic fields
• Charmonium states in strong magnetic fields
• Tabulated Neutron Star Equations of State Modeled within the Chiral Mean Field Model
• Bottom-strange mesons in hyperonic matter
• Charmonium decay widths in magnetized matter
• Bulk viscosity in hyperonic star and r-mode instability
• In-medium properties of pseudoscalar $D_s$ and $B_s$ mesons
• In medium properties of $K^0$ and $\varphi$ mesons under an external magnetic field
• Light vector mesons ($\omega$, $\rho$ and $\varphi$) in strong magnetic fields: A QCD sum rule approach
• On the possibility of rho-meson condensation in neutron stars
• Kaons and antikaons in strong magnetic fields
• Spectroscopic parameters and electromagnetic form factor of kaon in vacuum and a dense medium
• Effects of the symmetry energy on the kaon condensates in the QMC Model
• Dirac sea effects on Heavy Quarkonia decay widths in magnetized matter -- a field theoretic model of composite hadrons
• Pseudoscalar mesons from a PNJL model at zero temperature