Abstract

• A strangeness -1 single- hypernucleus event which is detected in nuclear emulsion of hybrid-emulsion experiment KEK-PS E373 is analyzed starting from its decay point. Kinematical analysis is used to perform analysis. The neutral particle emission at point B is checked by two methods and it is observed that the neutral particles are also emitted as the decay products. +7+9+` 7t; possible decay modes are selected by calculating the energy and momentum of decay products and kinematical analysis is done. Masses and binding energies of possible hypernuclei were calculated. According to the analysis result, the event is assigned to be 7,8Li or 10Be or  14C. The most probable decay mode is identified as 8 Li→ d +He3+3n with 7641.40.006 MeV/c2 mass and 9.650.06 MeV binding energy. Our results are consistent with other theoretical and experimental results.