2006/07/24 by Amruta Mishra, Stefan Schramm · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Asymmetry #Hadron #High-Energy Particle Collisions Research #High-pressure geophysics and materials #Isospin #Isovector #Meson #Nuclear matter #Nuclear physics #Nucleon #Particle physics #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Scalar (mathematics) #Strangeness #Vector meson #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.74.064904
published as Phys.Rev.C74:064904,2006 · 21 pages, 7 figures
arxiv created 2006/07/24 · openalex publication_date 2006/12/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 \ensuremathρ meson as well as the scalar-isovector \ensuremathδ 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.