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Alpha-decay hindrance factors: A probe of mean-field wave function
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
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2006 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 73, no 6, 064304- p.Article in journal (Refereed) Published
Abstract [en]

A simple model to calculate alpha-decay hindrance factors (HF) with special emphasis on the shape coexistence in the Pb-Po region is presented. Using deformation values obtained from potential energy surface (PES) calculations as the only input, hindrance factors for the alpha decay of Rn and Po isotopes are calculated. The fair agreement between experimental and theoretical hindrance factors suggest that the wave function obtained from the energy minima of the PES calculations contains an important part of the correlations that play a role for the alpha decay. The model is applicable to shape coexistence in the Po and Pb region when minima are well defined. The calculated HF that emerge from these calculations render a different interpretation than the commonly assumed n-particle n-hole picture of the intruder states in the Pb region.

Place, publisher, year, edition, pages
2006. Vol. 73, no 6, 064304- p.
Keyword [en]
even-even nuclei, shape coexistence, intruder states, shell-model, fine-structure, isotopes, neutron, approximation, pb-186
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-15803DOI: 10.1103/PhysRevC.73.064304ISI: 000238697500013Scopus ID: 2-s2.0-33745170424OAI: oai:DiVA.org:kth-15803DiVA: diva2:333845
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2010-09-06Bibliographically approved
In thesis
1. Nuclear structure aspects of proton and alpha particle decay
Open this publication in new window or tab >>Nuclear structure aspects of proton and alpha particle decay
2006 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2006. vii, 40 p.
Series
Trita-FYS, ISSN 0280-316X ; 2006.30
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-3959 (URN)91-7178-340-7 (ISBN)
Public defence
2006-05-15, Sal FA32, AlbaNova, Roslagstullsbacken 21, Stockholm, 10:00
Opponent
Supervisors
Note
QC 20100906Available from: 2006-05-11 Created: 2006-05-11 Last updated: 2010-09-06Bibliographically approved

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