TY - JOUR
T1 - Multi-K̄ nuclei and kaon condensation
AU - Gazda, D.
AU - Friedman, E.
AU - Gal, A.
AU - Mareš, J.
PY - 2008/4/23
Y1 - 2008/4/23
N2 - We extend previous relativistic mean-field (RMF) calculations of multi-K̄ nuclei, using vector boson fields with SU(3) PPV coupling constants and scalar boson fields constrained phenomenologically. For a given core nucleus, the resulting K̄ separation energy BK̄, as well as the associated nuclear and K̄-meson densities, saturate with the number κ of K̄ mesons for κ κsat~10. Saturation appears robust against a wide range of variations, including the RMF nuclear model used and the type of boson fields mediating the strong interactions. Because BK̄ generally does not exceed 200 MeV, it is argued that multi-K̄ nuclei do not compete with multihyperonic nuclei in providing the ground state of strange hadronic configurations and that kaon condensation is unlikely to occur in strong-interaction self-bound strange hadronic matter. Last, we explore possibly self-bound strange systems made of neutrons and K̄0 mesons, or protons and K- mesons, and study their properties.
AB - We extend previous relativistic mean-field (RMF) calculations of multi-K̄ nuclei, using vector boson fields with SU(3) PPV coupling constants and scalar boson fields constrained phenomenologically. For a given core nucleus, the resulting K̄ separation energy BK̄, as well as the associated nuclear and K̄-meson densities, saturate with the number κ of K̄ mesons for κ κsat~10. Saturation appears robust against a wide range of variations, including the RMF nuclear model used and the type of boson fields mediating the strong interactions. Because BK̄ generally does not exceed 200 MeV, it is argued that multi-K̄ nuclei do not compete with multihyperonic nuclei in providing the ground state of strange hadronic configurations and that kaon condensation is unlikely to occur in strong-interaction self-bound strange hadronic matter. Last, we explore possibly self-bound strange systems made of neutrons and K̄0 mesons, or protons and K- mesons, and study their properties.
UR - http://www.scopus.com/inward/record.url?scp=43049135512&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.77.045206
DO - 10.1103/PhysRevC.77.045206
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:43049135512
SN - 0556-2813
VL - 77
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 4
M1 - 045206
ER -