OBELIX results on Kaonic Nuclear Clusters production by antiproton annihilation at rest on ⁴He

Abstract

Experimental results recently obtained by OBELIX on the possible production of Kaonic Nuclear Clusters by $\overline{p}$ annihilation on ⁴He are critically revised and compared with analogous results from experiments with stopped K−. The use of $\overline{p}$ instead than K− at rest on nuclei in the search of the existence and properties of such objects seems better, both from the experimental side and the discovery potential.