Kaons and antikaons in hot and dense hadronic matter

Abstract

The medium modification of kaon and antikaon masses, compatible with low energy KN scattering data, are studied in a chiral SU(3) model. The mutual interactions with baryons in hot hadronic matter and the effects from the baryonic Dirac sea on the K($\bar{\mathrm{K}}$) masses are examined. The in-medium masses from the chiral SU(3) effective model are compared to those from chiral perturbation theory. Furthermore, the influence of these in-medium effects on kaon rapidity distributions and transverse energy spectra as well as the $K,\bar{K}$ flow pattern in heavy-ion collision experiments at 1.5 to 2 A$\cdot$GeV are investigated within the HSD transport approach. Detailed predictions on the transverse momentum and rapidity dependence of directed flow $v_1$ and the elliptic flow $v_2$ are provided for Ni+Ni at 1.93 A$\cdot$GeV within the various models, that can be used to determine the in-medium $K^{\pm }$ properties from the experimental side in the near future.

arXiv comment37 pages, 16 figures, submitted to Phys. Rev. C

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• What determines the $K^{-}$ multiplicity at energies around 1-2 AGeV?
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• Statistical production of antikaon nuclear bound states in heavy ion collisions
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• D-mesons in asymmetric nuclear matter
• The properties of D and D* mesons in the nuclear medium
• Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter
• Isospin dependent kaon and antikaon optical potentials in dense hadronic matter
• In-medium effects in strangeness production in heavy-ion collisions at (sub-)threshold energies
• Kaons and antikaons in asymmetric nuclear matter
• D mesons in strongly magnetized asymmetric nuclear matter
• Sub-threshold production of K^{0}_{s} mesons and Λ hyperons in Au(1.23A GeV)+Au
• Observation of different azimuthal emission patterns for K+ and of K- mesons in Heavy Ion Collisions at 1-2 AGeV
• Kaon properties in (proto)neutron stars
• Open bottom mesons in hot asymmetric hadronic medium
• Open charm meson in nuclear matter at finite temperature beyond the zero range approximation
• Bottomonium states in hot asymmetric strange hadronic matter
• Kaon production and propagation at intermediate relativistic energies
• Light vector meson masses in strange hadronic matter -- a QCD sum rule approach
• Azimuthal Emission Patterns of $K^{+}$ and of $K^{-}$ Mesons in Ni + Ni Collisions near the Strangeness Production Threshold
• Open bottom mesons in asymmetric nuclear matter in presence of strong magnetic fields
• Charmonium states in strong magnetic fields
• Bottom-strange mesons in hyperonic matter
• Charmonium decay widths in magnetized matter
• Kaon Condensation and Lambda-Nucleon Loop in the Relativistic Mean-Field Approach
• $\varphi$ meson mass and decay width in strange hadronic matter
• In-medium properties of pseudoscalar $D_s$ and $B_s$ mesons
• 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
• Squeezed back-to-back correlation between bosons and antibosons with different in-medium masses in high-energy heavy-ion collisions
• Light vector mesons ($\omega$, $\rho$ and $\varphi$) in strong magnetic fields: A QCD sum rule approach
• Heavy vector and axial-vector $D$ mesons in hot magnetized asymmetric nuclear matter
• Kaons and antikaons in strong magnetic fields
• Strange mesons in strong magnetic fields
• Review of the results of the KaoS Collaboration
• Dirac sea effects on Heavy Quarkonia decay widths in magnetized matter -- a field theoretic model of composite hadrons
• Spectral functions of strange vector mesons in asymmetric hyperonic matter
• Squeezed spectra of bosons and antibosons with different in-medium masses
• Thermal behaviors of light unflavored tensor mesons in the framework of QCD sum rule
• Resonances in chiral unitary approaches
• Open-charm enhancement at FAIR?