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Widths of $\bar K$-nuclear deeply bound states in a dynamical model

J. Mares·E. Friedman·A. Gal
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Abstract

The relativistic mean field (RMF) model is applied to a system of nucleons and a $\bar K$ meson, interacting via scalar and vector boson fields. The model incorporates the standard RMF phenomenology for bound nucleons and, for the $\bar K$ meson, it relates to low-energy ${\bar K}N$ and $K^-$ atom phenomenology. Deeply bound $\bar K$ nuclear states are generated dynamically across the periodic table and are exhibited for $^{12}$C and $^{16}$O over a wide range of binding energies. Substantial polarization of the core nucleus is found for these light nuclei. Absorption modes are also included dynamically, considering explicitly the reduced phase space for $\bar K$ absorption from deeply bound states. The behavior of the calculated width as function of the $\bar K$ binding energy is studied in order to explore limits on the possible existence of narrow $\bar K$ nuclear states.

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J. Mares, E. Friedman, A. Gal. 2004-12-02. Widths of $\bar K$-nuclear deeply bound states in a dynamical model. https://doi.org/10.1016/j.physletb.2004.11.086

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