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|Title:||In-medium kaon and antikaon properties in the quark-meson coupling model|
|Citation:||Physics Letters B: Nuclear Physics and Particle Physics, 1998; 429(3-4):239-246|
|Publisher:||ELSEVIER SCIENCE BV|
|Abstract:||The properties of the kaon, K, and antikaon, K, in nuclear medium are studied in the quark-meson coupling (QMC) model. Employing a constituent quark-antiquark (MIT bag model) picture, their excitation energies in a nuclear medium at zero momentum are calculated within mean field approximation. The scalar, and the vector mesons are assumed to couple directly to the nonstrange quarks and antiquarks in the K and K̄ mesons. It is demonstrated that the p meson induces different mean field potentials for each member of the isodoublets, K and K̄, when they are embedded in asymmetric nuclear matter. Furthermore, it is also shown that this ρ meson potential is repulsive for the K- meson in matter with a neutron excess, and renders K- condensation less likely to occur. © 1998 Elsevier Science B.V. All rights reserved.|
|Appears in Collections:||Aurora harvest 2|
Special Research Centre for the Subatomic Structure of Matter publications
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