alpha decay of high-K isomers in (270)Ds and (266)Hs in a superfluid tunneling model

作者：Clark R M; Rudolph D

来源：PHYSICAL REVIEW C, 2018, 97(2): 024333.

DOI：10.1103/PhysRevC.97.024333

We use the superfluid tunneling model (STM) to calculate the half-lives of ground-state a decays of even-even superheavy nuclei (SHN) with Z >= 100. The experimental data are reproduced to accuracies comparable to other contemporary models of alpha decay of SHN. We apply the STM to the case of the alpha decaying high-K isomers identified in the decay chains of (270)Ds. By accounting for the alpha-decay Q values, Q(alpha), the angular momentum difference between initial and final states, L, and a reduction in the pairing gap, Delta, we are able to reproduce the observed alpha decay of the isomers, including the unusual competition between L approximate to 10 and L approximate to 0 alpha branches seen for the K isomer in (270)Ds (Z = 110).

• 出版日期2018-2-26