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Electromagnetic transition strengths in Te-109(52)
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.ORCID iD: 0000-0003-1996-0805
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.ORCID iD: 0000-0003-1771-2656
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
Abstract [en]

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.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-103371DOI: 10.1103/PhysRevC.86.034308ISI: 000308460800002Scopus ID: 2-s2.0-84867205942OAI: oai:DiVA.org:kth-103371DiVA: diva2:561502
Funder
Swedish Research Council, 6621-2010-3694Swedish Research Council, 621-2010-4723
Note

QC 20121019

Available from: 2012-10-19 Created: 2012-10-11 Last updated: 2017-12-07Bibliographically approved

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Bäck, TorbjörnCederwall, Bo

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