POSSIBILITY OF SYNTHESIZING DOUBLY MAGICSUPERHEAVY NUCLEI

摘要

Fusion-fission process in superheavy mass region is investigated on the basisof the fluctuation-dissipation dynamics. We analyze the trajectory in three-dimensional coordinate space with the Langevin equation. To investigate thefusion-fission process more precisely, we propose to take into account the pre-scission neutron multiplicity in connection with fission fragments. For the sur-vival process, we apply the dynamical model instead of the statistical model.The possibility of synthesizing a doubly magic superheavy nucleus, 298114184,is investigated taking into account the temperature dependence of the potentialenergy owing to neutron emission.