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Title: Isospin dependent kaon and antikaon optical potentials in dense hadronic matter

Abstract

Isospin effects on the optical potentials of kaons and antikaons in dense hadronic matter are investigated using a chiral SU(3) model. These effects are important for asymmetric heavy-ion collision experiments. In the present work, the dispersion relations are derived for kaons and antikaons, compatible with the low-energy scattering data, within our model approach. The relations result from the kaonic interactions with the nucleons, vector mesons, and scalar mesons in the asymmetric nuclear matter. The isospin asymmetry effects arising from the interactions with the vector-isovector {rho} meson as well as the scalar-isovector {delta} mesons are considered. The density dependence of the isospin asymmetry is seen to be appreciable for the kaon and antikaon optical potentials. This dependence can be particularly relevant to the future Facility for Antiproton and Ion Research (FAIR) at GSI, where experiments using neutron-rich beams are planned to be used in the study of compressed baryonic matter.

Authors:
;  [1];  [2]
  1. Department of Physics, Indian Institute of Technology, Delhi, New Delhi 110 016 (India)
  2. (Germany)
Publication Date:
OSTI Identifier:
20864226
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 74; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevC.74.064904; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ANTIKAONS; ANTIPROTONS; ASYMMETRY; CHIRALITY; DENSITY; DISPERSION RELATIONS; HEAVY ION REACTIONS; ISOSPIN; ISOVECTORS; NEUTRONS; NUCLEAR MATTER; PARTICLE INTERACTIONS; POTENTIALS; RHO-770 MESONS; SCALAR MESONS; SCATTERING; SU-3 GROUPS

Citation Formats

Mishra, Amruta, Schramm, Stefan, and Institut fuer Theoretische Physik, J.W. Goethe Universitaet, Max-von-Laue-Str. 1, D-60438 Frankfurt. Isospin dependent kaon and antikaon optical potentials in dense hadronic matter. United States: N. p., 2006. Web. doi:10.1103/PHYSREVC.74.064904.
Mishra, Amruta, Schramm, Stefan, & Institut fuer Theoretische Physik, J.W. Goethe Universitaet, Max-von-Laue-Str. 1, D-60438 Frankfurt. Isospin dependent kaon and antikaon optical potentials in dense hadronic matter. United States. doi:10.1103/PHYSREVC.74.064904.
Mishra, Amruta, Schramm, Stefan, and Institut fuer Theoretische Physik, J.W. Goethe Universitaet, Max-von-Laue-Str. 1, D-60438 Frankfurt. Fri . "Isospin dependent kaon and antikaon optical potentials in dense hadronic matter". United States. doi:10.1103/PHYSREVC.74.064904.
@article{osti_20864226,
title = {Isospin dependent kaon and antikaon optical potentials in dense hadronic matter},
author = {Mishra, Amruta and Schramm, Stefan and Institut fuer Theoretische Physik, J.W. Goethe Universitaet, Max-von-Laue-Str. 1, D-60438 Frankfurt},
abstractNote = {Isospin effects on the optical potentials of kaons and antikaons in dense hadronic matter are investigated using a chiral SU(3) model. These effects are important for asymmetric heavy-ion collision experiments. In the present work, the dispersion relations are derived for kaons and antikaons, compatible with the low-energy scattering data, within our model approach. The relations result from the kaonic interactions with the nucleons, vector mesons, and scalar mesons in the asymmetric nuclear matter. The isospin asymmetry effects arising from the interactions with the vector-isovector {rho} meson as well as the scalar-isovector {delta} mesons are considered. The density dependence of the isospin asymmetry is seen to be appreciable for the kaon and antikaon optical potentials. This dependence can be particularly relevant to the future Facility for Antiproton and Ion Research (FAIR) at GSI, where experiments using neutron-rich beams are planned to be used in the study of compressed baryonic matter.},
doi = {10.1103/PHYSREVC.74.064904},
journal = {Physical Review. C, Nuclear Physics},
number = 6,
volume = 74,
place = {United States},
year = {Fri Dec 15 00:00:00 EST 2006},
month = {Fri Dec 15 00:00:00 EST 2006}
}