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α decay of high-K isomers in Ds270 and Hs266 in a superfluid tunneling model
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https://doi.org/10.1103/physrevc.97.024333Abstract
We use the superfluid tunneling model (STM) to calculate the half-lives of ground-state α decays of even-even superheavy nuclei (SHN) with Z≥100. The experimental data are reproduced to accuracies comparable to other contemporary models of α decay of SHN. We apply the STM to the case of the α decaying high-K isomers identified in the decay chains of Ds270. By accounting for the α-decay Q values, Qα, the angular momentum difference between initial and final states, L, and a reduction in the pairing gap, Δ, we are able to reproduce the observed α decay of the isomers, including the unusual competition between L≈10 and L≈0α branches seen for the K isomer in Ds270(Z=110).
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