Kaon effective mass and energy from a novel chiral SU(3)-symmetric Lagrangian

Abstract

A new chiral SU(3) Lagrangian is proposed to describe the properties of kaons and antikaons in the nuclear medium, the ground state of dense matter and the kaon-nuclear interactions consistently. The saturation properties of nuclear matter are reproduced as well as the results of the Dirac-Brückner theory. Our numerical results show that the kaon effective mass might be changed only moderately in the nuclear medium due to the highly non-linear density effects. After taking into account the coupling between the omega meson and the kaon, we obtain similar results for the effective kaon and antikaon energies as calculated in the one-boson-exchange model while in our model the parameters of the kaon-nuclear interactions are constrained by the SU(3) chiral symmetry.

13 pages, Latex, 3 PostScript figures included; replaced by the revised version, to appear in Phys. Rev. C

References in corpus (4)

• Nuclei in a chiral SU(3) model
• Nuclear kaon dynamics
• Kaon production in heavy-ion collisions and maximum mass of neutron stars
• Chiral Lagrangian for strange hadronic matter

Cited by in corpus (17)

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• Kaon production in heavy ion reactions at intermediate energies
• The properties of \bar{K} in the nuclear medium
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• Kaons and antikaons in hot and dense hadronic matter
• Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter
• Kaon Condensates, Nuclear Symmetry Energy and Cooling of Neutron Stars
• Isospin dependent kaon and antikaon optical potentials in dense hadronic matter
• Kaons and antikaons in asymmetric nuclear matter
• Kaon properties in (proto)neutron stars
• Strangeness in Neutron Stars
• Hyperons in a relativistic mean-field approach to asymmetric nuclear matter
• ${\bar{K}}^{\ast }$ meson in dense matter
• $\varphi$ meson mass and decay width in strange hadronic matter
• In medium properties of $K^0$ and $\varphi$ mesons under an external magnetic field
• In-medium properties of kaons in a chiral approach