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Anomalous transition strength in the proton-unbound nucleus (109)(53)I56
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2011 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 704, no 3, 118-122 p.Article in journal (Refereed) Published
Abstract [en]

A lifetime measurement has been made for the first excited 11/2(+) state in the proton-unbound nucleus (109)(53)I56 using the recoil-distance Doppler-shift method in conjunction with recoil-proton tagging. The experimental reduced transition probability is considerably smaller than the prediction of theoretical shell-model calculations using the CD-Bonn nucleon-nucleon potential. The discrepancy between the theoretical and experimental reduced transition strengths in this work most likely arises from the inability of the current shell-model calculations to accurately account for the behavior of the unbound nuclear states.

Place, publisher, year, edition, pages
2011. Vol. 704, no 3, 118-122 p.
Keyword [en]
Lifetimes, B(E2), Recoil-distance Doppler-shift method, Recoil-decay tagging, CD-Bonn, Effective charges, A=109
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-51291DOI: 10.1016/j.physletb.2011.09.012ISI: 000296305800005ScopusID: 2-s2.0-80053130367OAI: diva2:463884
Swedish Research Council, 623-2009-7340, 621-2010-3694 2010-4723
QC 20111212Available from: 2011-12-12 Created: 2011-12-12 Last updated: 2012-02-23Bibliographically approved

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Bäck, TorbjörnCederwall, BoLiotta, RobertoQi, Chong
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