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Evolution of the N=82 shell gap below Sn-132 inferred from core excited states in In-131
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2009 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 672, no 4-5, 313-316 p.Article in journal (Refereed) Published
Abstract [en]

The gamma-ray decay of ail excited state in In-131, the one proton hole neighbor of the doubly magic (132)sn has been measured. A high-spin, core-excited isomer with T-1/2 = 630(60) us was identified following production by both relativistic fragmentation of a Xe-136 beam and fission Of a U-238 beam. This state deexcites by a single gamma-ray branch of 3782(2) keV from which direct evidence for the size of the N = 82 shell gal) is inferred. The results are discussed in comparison to a shell-model Calculation including configurations across the closed shells at N = 82 and Z = 50.

Place, publisher, year, edition, pages
2009. Vol. 672, no 4-5, 313-316 p.
Keyword [en]
drip lines, spectroscopy, isotopes
URN: urn:nbn:se:kth:diva-18257DOI: 10.1016/j.physletb.2009.01.027ISI: 000264371400001ScopusID: 2-s2.0-60449087467OAI: diva2:336303
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-02-07Bibliographically approved

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Cederwall, BoAndgren, KarinKhaplanov, Anton
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