Mass-TKE distributions for symmetric fission in neutron-rich Fm and transfermium nuclei

Asai, Masato

no journal, , 

Fission-fragment mass and total kinetic energy (TKE) distributions for the spontaneous fission (SF) of neutron-rich Fm and transfermium nuclei have been measured precisely. The deduced mass-TKE distributions for the SF of Fm, Md, and Lr revealed that the SF of these nuclei show mixture of three types of fission with different mechanisms: the high-TKE symmetric fission, low-TKE symmetric fission, and asymmetric fission.