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Microscopic description of superallowed alpha-decay transitions
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
2016 (English)In: PHYSICAL REVIEW C, ISSN 2469-9985, Vol. 93, no 5, 054326Article in journal (Refereed) Published
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Text
Abstract [en]

It was recently found that the formation probabilities of alpha particles in Te isotopes are larger than the corresponding probabilities in Po isotopes. We have done a full microscopic calculation within the framework of the multistep shell model to analyze in detail the formation probabilities and subsequent decays of alpha particles from Po-212 and Te-104. We have also calculated the spectra of these two decaying nuclei and found that the tentatively assigned spin (18(+)) at 2.922 MeV in Po-212 (National Nuclear Data Center, www.nndc.bnl.gov) is predicted to be a state 16(+). We also present for the first time the full energy spectrum of Te-104. The evaluated formation amplitudes in both nuclei show that in Te-104 there is indeed a superallowed alpha-decay transition.

Place, publisher, year, edition, pages
American Physical Society , 2016. Vol. 93, no 5, 054326
National Category
Other Physics Topics Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-188726DOI: 10.1103/PhysRevC.93.054326ISI: 000376640100001Scopus ID: 2-s2.0-84971321336OAI: oai:DiVA.org:kth-188726DiVA: diva2:939714
Funder
Swedish Research Council, 621-2012-3805Swedish Research Council, 621-2013-4323
Note

QC 20160620

Available from: 2016-06-20 Created: 2016-06-17 Last updated: 2016-06-20Bibliographically approved

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