Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-06-29
Phys.Rev.C80:035205,2009
Physics
Nuclear Physics
Nuclear Theory
21 pages, 7 figures, revised figures and text
Scientific paper
10.1103/PhysRevC.80.035205
Relativistic mean field calculations of multi-$\bar{K}$ hypernuclei are performed by adding $K^-$ mesons to particle-stable configurations of nucleons, $\Lambda$ and $\Xi$ hyperons. For a given hypernuclear core, the calculated $\bar{K}$ separation energy $B_{\bar{K}}$ saturates with the number of $\bar{K}$ mesons for more than roughly 10 mesons, with $B_{\bar{K}}$ bounded from above by 200 MeV. The associated baryonic densities saturate at values 2-3 times nuclear-matter density within a small region where the $\bar{K}$-meson densities peak, similarly to what was found for multi-$\bar{K}$ nuclei. The calculations demonstrate that particle-stable multistrange $\{N,\Lambda,\Xi \}$ configurations are stable against strong-interaction conversions $\Lambda \to N \bar{K}$ and $\Xi \to N \bar{K} \bar{K}$, confirming and strengthening the conclusion that kaon condensation is unlikely to occur in strong-interaction self-bound strange hadronic matter.
Friedman Eduardo
Gal Asaf
Gazda D.
Mare{š} Ji{ř}{\'ı} J.
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