2021/01/08 by J. Dong, J. M. Dong, Q. Zhao +5 · 8 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Cluster (spacecraft) #Computer science #Environmental science #Nuclear physics research studies #Operating system #Physics #nucl-th
paper · pdf · doi:10.1016/j.physletb.2021.136063
published in Physics Letters B 813, 136063 (Elsevier BV) · 7 pages, 4 figures
openalex publication_date 2021/01/08 · openalex created_date 2021/01/18 · arxiv created 2021/01/19 · arxiv updated 2021/01/20 · openalex updated_date 2026/08/05
α-decay always has enormous impetuses to the development of physics and chemistry, in particular due to its indispensable role in the research of new elements. Although it has been observed in laboratories for more than a century, it remains a difficult problem to calculate accurately the formation probability Sα microscopically. To this end, we establish a new model, i.e., multistep model, and the corresponding formation probability Sα values of some typical α-emitters are calculated without adjustable parameters. The experimental half-lives, in particular their irregular behavior around a shell closure, are remarkably well reproduced by half-life laws combined with these Sα. In our strategy, the cluster formation is a gradual process in heavy nuclei, different from the situation that cluster pre-exists in light nuclei. The present study may pave the way to a fully understanding of α-decay from the perspective of nuclear structure.