Аннотация
The resonant structure of the light nucleus7Be in the42He +32He cluster configu-ration has been investigated within the framework of a microscopic two-cluster model employ-ing the algebraic version of the resonating group method. Elastic scattering cross sections forthe reaction74Be →42He +32He are calculated and the corresponding energy dependence is ob-tained. The total elastic scattering cross sections are calculated using the modified nucleon–nucleonHasegawa–Nagata potential. The obtained resonance parameters for the available states12−,32−,52−, and72−are determined and compared with experimental data. The resonance parameters forthe52−and72−states are also obtained, indicating the presence of broad and narrow resonances,which indicates the existence of both short-lived and long-lived states in the nuclear system understudy.