Evidence for a K¯NN quasi-bound state in the γd → K0Λp reaction
R. Kobayakawa, J.K. Ahn, S. Ajimura, W.-C. Chang et autres
The $γd \to K^{0}Λp$ reaction has been studied to search for a $\bar{K}NN$ quasi-bound state using the LEPS2 solenoid spectrometer at SPring-8. A localized enhancement concentrated at low $q$ is observed in the $(M_{Λp},q)$ distribution below the $K^-pp$ mass threshold, where $M_{Λp}$ …