Abstract
The properties of recently predicted thermally fissile Th and U isotopes are studied within the framework of the relativistic mean-field approach using the axially deformed basis. We calculate the ground, first intrinsic excited state for highly neutron-rich thorium and uranium isotopes. The possible modes of decay such as decay and decay are analyzed. We found that neutron-rich isotopes are stable against decay, however, they are very unstable against decay. The lifetime of these nuclei is predicted to be tens of seconds against decay. If these nuclei are utilized before their decay time, a lot of energy can be produced with the help of multifragmentation fission. Also, these nuclei have great implications from the astrophysical point of view. In some cases, we found that the isomeric states with energy range from 2 to 3 MeV and three maxima in the potential energy surface of and isotopes.
1 More- Received 3 August 2015
- Revised 28 September 2015
DOI:https://doi.org/10.1103/PhysRevC.92.054314
©2015 American Physical Society