Anomalous transition strength in the proton-unbound nucleus (109)(53)I56
2011 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 704, no 3, 118-122 p.Article in journal (Refereed) Published
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.
Lifetimes, B(E2), Recoil-distance Doppler-shift method, Recoil-decay tagging, CD-Bonn, Effective charges, A=109
IdentifiersURN: urn:nbn:se:kth:diva-51291DOI: 10.1016/j.physletb.2011.09.012ISI: 000296305800005ScopusID: 2-s2.0-80053130367OAI: oai:DiVA.org:kth-51291DiVA: diva2:463884
FunderSwedish Research Council, 623-2009-7340, 621-2010-3694 2010-4723
QC 201112122011-12-122011-12-122012-02-23Bibliographically approved