Electromagnetic transition strengths in Te-109(52)
2012 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 86, no 3, 034308- p.Article in journal (Refereed) Published
Lifetime measurements have been made in the neutron-deficient nucleus Te-109 using the coincident recoil distance Doppler-shift method. The experimental B(E2) values have been compared with state-of-the-art shell-model calculations using the monopole-corrected realistic charge-dependent Bonn nucleon-nucleon potential. Lifetimes in the vh(11/2) band are consistent with an interpretation based on the deformation driving properties of a single valence neutron outside of the even-even tellurium core and highlight the unexpected presence of collective behavior as the N = 50 shell closure is approached. Lifetime measurements for the low-lying positive-parity states also appear to correlate well with shell-model calculations. In addition, a comparison with the proton-unbound nucleus I-109 suggests that the presence of a single decoupled valence proton affects the total measured B(E2) strengths in a manner that is not currently well understood.
Place, publisher, year, edition, pages
2012. Vol. 86, no 3, 034308- p.
IdentifiersURN: urn:nbn:se:kth:diva-103371DOI: 10.1103/PhysRevC.86.034308ISI: 000308460800002ScopusID: 2-s2.0-84867205942OAI: oai:DiVA.org:kth-103371DiVA: diva2:561502
FunderSwedish Research Council, 6621-2010-3694Swedish Research Council, 621-2010-4723
QC 201210192012-10-192012-10-112012-10-19Bibliographically approved