alpha decay of nuclei in the range 67 <= Z <= 91 from the ground state and isomeric state

作者：Santhosh K P^*; Joseph Jayesh George; Sahadevan Sabina

来源：Physical Review C, 2010, 82(6): 064605.

DOI：10.1103/PhysRevC.82.064605

The Coulomb and proximity potential model for deformed nuclei (CPPMDN) is used to study the favored and unfavored alpha decay of nuclei in the range 67 <= Z <= 91 from both the ground state (g.s.) and isomeric state (i.s.). The computed half-lives are in good agreement with experimental data. The standard deviation of half-life is found to be 0.44. Geiger-Nuttall (GN) plots for various parent isotopes are studied. It is found that all four types of transitions (g.s. -> g.s., g.s. -> i.s., i.s. -> g.s., i.s. -> i.s.) lie on a straight line. The isomeric state alpha decay shows a behavior similar to that of the ground state and the nuclear structure of the isomeric states imitates that of the ground states. Some predictions are done for a transition from both ground and isomeric states, which will be useful for future experiments.

• 出版日期2010-12-17