Study of the Σ⁰p Final State from K⁻ Absorptions

Abstract

We present the study of the Σ 0 p final state produced in the K − absorption processes in the Carbon entrance wall of the KLOE detector. The analysis of the several kinematic variables measured for the Σ 0 p final state and the comparison to simulations allowed us to extract the contribution of the K − + pp → Σ 0 + p process without any further final state interaction. This contribution is found to be only 10% of the total yield originating from the K − absorption on two, three or more nucleons.

On the Importance of Future, Precise, X-ray Measurements in Kaonic Atoms

“…Finally, we add a contribution to a non-mesic capture which contributes only to absorptive potential, denoted by NN. An experimental finding [31] is that it contributes 12% of all captures in Helium (see also [32]). The non-mesic interaction is expected to contribute a negligible shift, typical of large final phase space.…”