As the latest effort to search for deeply-bound (K) over bar -nuclear states, E15 experiment has been carried out at K1.8 branch beam line (K1.8BR) at J-PARC. He-3(K-, N) reaction was employed to search for the simplest (K) over bar -nuclear bound state, K- pp. In this proceeding, preliminary results of He-3(K-, n) spectra obtained in the first physics-run will be presented.
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关键词
(K)over-barN interaction, deeply bound K- pp state, missing, mass spectrum