Alpha-particle formation and decay rates from Skyrme–HFB wave functions

Ward, D.; Carlsson, B. G.; Åberg, Sven

doi:10.1088/0031-8949/89/5/054027

Cited by 6 publications

(4 citation statements)

References 25 publications

(56 reference statements)

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“…However, the calculated formation amplitude is still several of orders of magnitude too small in comparison to experimental data. The application of the recently refined functional seems to make the discrepancy even worse [207]. Further investigation along this line would be interesting to understand the origin of the discrepancy, which may shed additional light on the constraint of the density functional.…”

Section: Bcs Treatment Of Alpha Decay and Pairing Correlationmentioning

confidence: 97%

“…The Skyrme-Hartree-Fock single-particle wave functions were applied to calculate the α formation amplitudes in even-even nuclei in Refs. [206,207] and even-odd nuclei [208]. However, the calculated formation amplitude is still several of orders of magnitude too small in comparison to experimental data.…”

Section: Bcs Treatment Of Alpha Decay and Pairing Correlationmentioning

confidence: 99%

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Recent developments in radioactive charged-particle emissions and related phenomena

Liotta

Wyss

2019

Progress in Particle and Nuclear Physics

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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.

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Section: Bcs Treatment Of Alpha Decay and Pairing Correlationmentioning

confidence: 97%

Section: Bcs Treatment Of Alpha Decay and Pairing Correlationmentioning

confidence: 99%

Recent developments in radioactive charged-particle emissions and related phenomena

Liotta

Wyss

2019

Progress in Particle and Nuclear Physics

View full text Add to dashboard Cite

show abstract

“…However, the calculated formation amplitude is still several of orders of magnitude too small in comparison to experimental data. The application of the recently refined functional seems to make the discrepancy even worse [45]. Further investigation along this line would be interesting to understand the origin of the discrepancy, which may shed additional light on the constraint of the density functional.…”

Section: The Single-particle Basis and The Hartree-fock Wave Functionmentioning

confidence: 97%

“…Significant progress has also been made in the development of nuclear density functional approaches which are now able to provide a reasonable description of ground state binding energies and densities throughout the nuclear chart, even though the description of the single-particle spectroscopy is still less satisfactory. The Skyrme-Hartree-Fock single-particle wave functions were applied to calculate the α formation amplitudes in both even-even nuclei [44,45] and even-odd nuclei [46]. However, the calculated formation amplitude is still several of orders of magnitude too small in comparison to experimental data.…”

Section: The Single-particle Basis and The Hartree-fock Wave Functionmentioning

confidence: 99%

Alpha decay as a probe for the structure of neutron-deficient nuclei

2016

Reviews in Physics

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The advent of radioactive ion beam facilities and new detector technologies have opened up new possibilities to investigate the radioactive decays of highly unstable nuclei, in particular the proton emission, $\alpha$ decay and heavy cluster decays from neutron-deficient (or proton-rich) nuclei around the proton drip line. It turns out that these decay measurements can serve as a unique probe for studying the structure of the nuclei involved. On the theoretical side, the development in nuclear many-body theories and supercomputing facilities have also made it possible to simulate the nuclear clusterization and decays from a microscopic and consistent perspective. In this article we would like to review the current status of these structure and decay studies in heavy nuclei, regarding both experimental and theoretical opportunities. We then discuss in detail the recent progress in our understanding of the nuclear $\alpha$ formation probabilities in heavy nuclei and their indication on the underlying nuclear structure.Comment: 15 pages, 4 figure

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Clustering in nuclei: progress and perspectives

Wei,

Ye,

Yang

2024

NUCL SCI TECH

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Nucleus is essentially composed of protons and neutrons, which are commonly known as nucleons. Interestingly, some of nucleons may group together and exhibit collective behavior inside a nucleus. Such clustering effects have been known since the early stages of nuclear physics because of the observation and description of α-cluster decay from many heavy nuclei. Subsequent studies demonstrated that cluster structures exist in many nuclear systems, especially in weakly bound or excited states, and are complementary to the shell-like structures. In this review article, we provide a brief historical recall of the field, and follow it with a conceptual and logical description of the major theoretical models that have been frequently applied in the literature to describe nuclear clustering. Experimental methods and progress are outlined, recent outcomes are emphasized, and perspectives relevant to future studies of heavy neutron-rich systems are discussed.

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Alpha-particle formation and decay rates from Skyrme–HFB wave functions

Cited by 6 publications

References 25 publications

Recent developments in radioactive charged-particle emissions and related phenomena

Recent developments in radioactive charged-particle emissions and related phenomena

Alpha decay as a probe for the structure of neutron-deficient nuclei

Clustering in nuclei: progress and perspectives

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