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Narrow deeply bound $K^-$ atomic states

E. Friedman·A. Gal
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Abstract

Using optical potentials fitted to a comprehensive set of strong interaction level shifts and widths in $K^-$ atoms, we predict that the $K^-$ atomic levels which are inaccessible in the atomic cascade process are generally narrow, spanning a range of widths about 50 - 1500 keV over the entire periodic table. The mechanism for this narrowing is different from the mechanism for narrowing of pionic atom levels. Examples of such `deeply bound' $K^-$ atomic states are given, showing that in many cases these states should be reasonably well resolved. Several reactions which could be used to form these `deeply bound' states are mentioned. Narrow deeply bound states are expected also in $\bar{p}$ atoms.

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E. Friedman, A. Gal. 1999-05-30. Narrow deeply bound $K^-$ atomic states. https://doi.org/10.1016/s0370-2693(99)00651-6

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