Kaons and antikaons in asymmetric nuclear matter

Abstract

The properties of kaons and antikaons and their modification in isospin asymmetric nuclear matter are investigated using a chiral SU(3) model. These isospin dependent medium effects are important for asymmetric heavy ion collision experiments. In the present work, the medium modifications of the energies of the kaons and antikaons, within the asymmetric nuclear matter, arise due to the interactions of kaons and antikaons with the nucleons and scalar mesons. The values of the parameters in the model are obtained by fitting the saturation properties of nuclear matter and kaon-nucleon scattering lengths. The pion-nucleon scattering lengths are also calculated within the chiral effective model and compared with earlier results from the literature. The density dependence of the isospin asymmetry is seen to be appreciable for the kaon and antikaon optical potentials. This can be particularly relevant for the future accelerator facility FAIR at GSI, where experiments using neutron rich beams are planned to be used in the study of compressed baryonic matter.

References in corpus (55)

• Soft-core hyperon-nucleon potentials
• Constraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions
• Relativistic chiral SU(3) symmetry, large N_c sum rules and meson-baryon scattering
• Phases of dense matter in neutron stars
• Soft-core baryon-baryon potentials for the complete baryon octet
• EXO 0748-676 Rules out Soft Equations of State for Neutron Star Matter
• Nuclei in a chiral SU(3) model
• Spin-Isospin Structure and Pion Condensation in Nucleon Matter
• Probing the High Density Behaviour of Nuclear Symmetry Energy with High Energy Heavy-Ion Collisions
• The properties of \bar{K} in the nuclear medium
• Evidence for a Soft Nuclear Equation-of-State from Kaon Production in Heavy Ion Collisions
• Probing the nuclear equation of state by $K^{+}$ production in heavy ion collisions
• From Kaon-Nuclear Interactions to Kaon Condensation
• Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars
• Nuclear kaon dynamics
• On the Lorentz structure of the symmetry energy
• In-medium Production of Kaons at the Mean-Field Level
• Photon- and meson-induced reactions on the nucleon
• Medium Effects in Kaon and Antikaon Production in Nuclear Collisions at Subthreshold Beam Energies
• A unitary model for meson-nucleon scattering
• Kaon versus Antikaon Production at SIS Energies
• Medium Modified Cross Sections, Temperature and Finite Momentum Effects for Antikaon Production in Heavy-Ion Collisions
• Near-threshold pion production with radioactive beams at the Rare Isotope Accelerator
• Analysis of Kaon Production at SIS Energies
• Determination of the pion-nucleon coupling constant and scattering lengths
• Kaon-Nucleon Scattering Amplitudes and Z${}^{\ast }$-Enhancements from Quark Born Diagrams
• Mass modification of D-meson in hot hadronic matter
• Antikaon production in A+A collisions at SIS energies within an off-shell G-matrix approach
• Partial wave contributions to the antikaon potential at finite momentum
• First Measurement of Antikaon Phase-Space Distributions in Nucleus-Nucleus Collisions at Subthreshold Beam Energies
• The antikaon nuclear potential in hot and dense matter
• Probing the equation of state with pions
• Probing the density dependence of the symmetry potential at low and high densities
• What determines the $K^{-}$ multiplicity at energies around 1-2 AGeV?
• Kaons and antikaons in hot and dense hadronic matter
• K^+ production in the reaction ${}^{58}Ni{+}^{58}Ni$ at incident energies from 1 to 2 AGeV
• Self consistent propagation of hyperons and antikaons in nuclear matter based on relativistic chiral SU(3) dynamics
• Hybrid stars within a covariant, nonlocal chiral quark model
• The S-Wave Pion-Nucleon Scattering Lengths from Pionic Atoms using Effective Field Theory
• Medium modifications of the nucleon-nucleon elastic cross section in neutron-rich intermediate energy HICs
• Effects of Dirac sea polarization on hadronic properties - A chiral SU(3) approach
• Probing the density dependence of the symmetry potential in intermediate energy heavy ion collisions
• ${\Sigma }^{-}/{\Sigma }^{+}$ ratio as a candidate for probing the density dependence of the symmetry potential at high nuclear densities
• Chiral Lagrangians for Baryons coupled to massive Spin-1 Fields
• In-medium vector meson masses in a Chiral SU(3) model
• Isospin dependent kaon and antikaon optical potentials in dense hadronic matter
• Double neutron-proton differential transverse flow as a probe for the high-density behavior of the nuclear symmetry energy
• Medium effects on the flow of strange particles in heavy ion collisions
• High-energy behavior of the nuclear symmetry potential in asymmetric nuclear matter
• Strangeness equilibration in heavy ion collisions
• Kaon effective mass and energy from a novel chiral SU(3)-symmetric Lagrangian
• Kaon and Antikaon Production in Heavy Ion Collisions at 1.5 AGeV
• Phenomenology of kaonic atoms and other strange hadronic atoms
• Strangeness production in heavy ion reactions at intermediate energies
• Density resummation of perturbation series in a pion gas to leading order in chiral perturbation theory

Cited by in corpus (32)

• The hadronic SU(3) Parity Doublet Model for Dense Matter, its extension to quarks and the strange equation of state
• Heavy Hadrons in Nuclear Matter
• D mesons and charmonium states in asymmetric nuclear matter at finite temperatures
• D-mesons and charmonium states in hot isospin asymmetric strange hadronic matter
• Hot and dense hadronic matter in an effective mean field approach
• D-mesons in asymmetric nuclear matter
• Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter
• D mesons in strongly magnetized asymmetric nuclear matter
• Kaon properties in (proto)neutron stars
• Open bottom mesons in hot asymmetric hadronic medium
• Open bottom mesons in asymmetric nuclear matter in presence of strong magnetic fields
• Charmonium states in strong magnetic fields
• In-medium pseudoscalar $D/B$ mesons and charmonium decay width
• Bottom-strange mesons in hyperonic matter
• Charmonium decay widths in magnetized matter
• Multi-antikaonic nuclei in the relativistic mean-field theory
• Heavy Vector and Axial-Vector Mesons in Hot and Dense Asymmetric Strange Hadronic Matter
• $\varphi$ meson mass and decay width in strange hadronic matter
• Heavy Scalar, Vector and Axial-Vector Mesons in Hot and Dense Nuclear Medium
• In medium properties of $K^0$ and $\varphi$ mesons under an external magnetic field
• Critical temperature of antikaon condensation in nuclear matter
• Hadronic freeze-out in an effective relativistic mean field model
• Light vector mesons ($\omega$, $\rho$ and $\varphi$) in strong magnetic fields: A QCD sum rule approach
• Kaons and antikaons in strong magnetic fields
• Heavy vector and axial-vector $D$ mesons in hot magnetized asymmetric nuclear matter
• Baryon Resonances in a Chiral Hadronic Model for the QCD Equation of State
• Strange mesons in strong magnetic fields
• $\eta$ mesons in hot and dense asymmetric nuclear matter
• Dirac sea effects on Heavy Quarkonia decay widths in magnetized matter -- a field theoretic model of composite hadrons
• Chiral Hadronic Mean Field Model including Quark Degrees of Freedom
• Spectral functions of strange vector mesons in asymmetric hyperonic matter
• $\rho$ - meson spectral function in hot nuclear matter