Recent developments in radioactive charged-particle emissions and related phenomena

Abstract

The advent and intensive use of new detector technologies as well as radioactive ion beam facilities have opened up possibilities to investigate alpha, proton and cluster decays of highly unstable nuclei. This article provides a review of the current status of our understanding of clustering and the corresponding radioactive particle decay process in atomic nuclei. We put alpha decay in the context of charged-particle emissions which also include one- and two-proton emissions as well as heavy cluster decay. The experimental as well as the theoretical advances achieved recently in these fields are presented. Emphasis is given to the recent discoveries of charged-particle decays from proton-rich nuclei around the proton drip line. Those decay measurements have shown to provide an important probe for studying the structure of the nuclei involved. Developments on the theoretical side in nuclear many-body theories and supercomputing facilities have also made substantial progress, enabling one to study the nuclear clusterization and decays within a microscopic and consistent framework. We report on properties induced by the nuclear interaction acting in the nuclear medium, like the pairing interaction, which have been uncovered by studying the microscopic structure of clusters. The competition between cluster formations as compared to the corresponding alpha-particle formation are included. In the review we also describe the search for super-heavy nuclei connected by chains of alpha and other radioactive particle decays.

58 pages, submitted to Prog. Part. Nucl. Phys

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Cited by in corpus (21)

• New $\alpha$-Emitting Isotope ${}^{214}$U and Abnormal Enhancement of $\alpha$-Particle Clustering in Lightest Uranium Isotopes
• Alpha Decay to Doubly Magic Core in Quartetting Wave Function Approach
• Experimental searches for rare alpha and beta decays
• Can extreme electromagnetic fields accelerate the $\alpha$ decay of nuclei?
• Multipole expansion of densities in the deformed relativistic Hartree-Bogoliubov theory in continuum
• $\alpha$ Decay Half-life Estimation and Uncertainty Analysis
• Unexpectedly enhanced $\alpha$-particle preformation in ${}^{48}$Ti probed by the $(p,p\alpha )$ reaction
• $\alpha$ knockout reaction as a new probe for $\alpha$ formation in $\alpha$-decay nuclei
• alpha clustering and neutron-skin thickness of carbon isotopes
• The single-particle unit for alpha decay
• Systematic study of proton radioactivity of spherical proton emitters with Skyrme interactions
• Time-dependent Dirac equation applied to one-proton radioactive emission
• Systematic calculations of cluster radioactivity half-lives with a screened electrostatic barrier
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• Three-Dimensional Approach Applied to Quasi-stationary States of Deformed $\alpha$-Emitters
• Limitations of the Geiger-Nuttall Law in heavy cluster decay
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• Post-formation in alpha emission from nuclei
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• Proton radioactivity in deformed nuclei with microscopic optical potential: A novel angular-dependent emission mechanism in the nanosecond-lived ${}^{149}$Lu