Branching ratios of $α$-decay to excited states of even-even nuclei

Details Branching ratios of $α$-decay to excited states of even-even nuclei Branching ratios of $α$-decay to excited states of even-even nuclei

2006-09-13

arxiv.org/abs/nucl-th/0609028v1

Nucl.Phys. A778 (2006) 1-9

Physics

Nuclear Physics

Nuclear Theory

13 pages, 4 figures, Accepted for publication in Nucl. Phys. A

Scientific paper

10.1016/j.nuclphysa.2006.08.002

We make a systematic calculation on $\alpha$-decay branching ratios to members of ground-state rotational band and to excited $0^{+}$ states of even-even nuclei by a simple barrier penetration approach. The branching ratios to the excited states of daughter nucleus are determined by the $\alpha$-decay energy, the angular momentum of $\alpha$-particle, and the excitation probability of the daughter nucleus. Our calculation covers isotopic chains from Hg to Fm in the mass regions 180$<$A$<$202 and A$\geq$224. The calculated branching ratios of $\alpha$-transitions are consistent with the experimental data. Some useful predictions are made for future experiments.

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