0309165 - ÚJF 2009 RIV US eng J - Článek v odborném periodiku
Gazda, D. - Friedman, E. - Gal, A. - Mareš, Jiří
Multi-(K)over-bar nuclei and kaon condensation.
[Multi-Kbar jádra a kaonový kondenzát.]
Physical Review. C. Roč. 77, č. 4 (2008), 045206-045206. ISSN 0556-2813. E-ISSN 2469-9993
Grant CEP: GA AV ČR IAA100480617
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: heavy-ion collisions * mean-field theory * neutron-stars
Kód oboru RIV: BE - Teoretická fyzika
Impakt faktor: 3.124, rok: 2008 ; AIS: 0.885, rok: 2008
DOI: https://doi.org/10.1103/PhysRevC.77.045206

We extend previous relativistic mean-field (RMF) calculations of multi-(K) over bar nuclei, using vector boson fields with SU(3) PPV coupling constants and scalar boson fields constrained phenomenologically. For a given core nucleus, the resulting (K) over bar separation energy B-(K) over bar, as well as the associated nuclear and (K) over bar -meson densities, saturate with the number kappa of (K) over bar mesons for kappa>kappa(sat)similar to 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 B-(K) over bar generally does not exceed 200 MeV, it is argued that multi-(K) over bar 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.

Byla počítána jádra s více antikaony. Bylo ukázáno,že jak separační energie antikaonu tak jaderné a kaonové hustoty saturují s rostoucím počtem antikaonů. Vznik kaonového kondenzátu v silně interagujících systémech je proto málo pravděpodobný.
Trvalý link: http://hdl.handle.net/11104/0161378