Narrow deeply bound $K^-$ atomic states

Details Narrow deeply bound $K^-$ atomic states Narrow deeply bound $K^-$ atomic states

1999-02-16

arxiv.org/abs/nucl-th/9902036v2

Phys.Lett. B459 (1999) 43-48

Physics

Nuclear Physics

Nuclear Theory

Revised, Phys. Lett B. in press

Scientific paper

10.1016/S0370-2693(99)00651-6

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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