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Excited states in the proton-unbound nuclide Ta-158
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.ORCID iD: 0000-0003-1771-2656
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
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Number of Authors: 44
2016 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 93, no 3, 034307Article in journal (Refereed) PublishedText
Abstract [en]

Excited states in the neutron-deficient odd-odd proton-unbound nuclide Ta-158 have been investigated in two separate experiments. In the first experiment, Ir-166 nuclei were produced in the reactions of 380 MeV Kr-78 ions with an isotopically enriched Mo-92 target. The alpha-decay chain of the 9(+) state in Ir-166 was analyzed. Fine structure in the a decay of the 9(+) state in Re-162 established a 66 keV difference in excitation energy between the lowest-lying 9(+) and 10(+) states in Ta-158. Higher-lying states in Ta-158 were populated in the reactions of 255 MeV Ni-58 ions with an isotopically enriched Pd-102 target. Gamma-ray decay paths that populate, depopulate, and bypass a 19(-) isomeric state have been identified. The general features of the deduced level scheme are discussed and the prospects for observing proton emission branches from excited states are considered.

Place, publisher, year, edition, pages
American Physical Society , 2016. Vol. 93, no 3, 034307
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-184526DOI: 10.1103/PhysRevC.93.034307ISI: 000371740600002ScopusID: 2-s2.0-84960539133OAI: oai:DiVA.org:kth-184526DiVA: diva2:917452
Funder
Swedish Research Council, 2010-3694
Note

QC 20160406

Available from: 2016-04-06 Created: 2016-04-01 Last updated: 2016-04-06Bibliographically approved

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Andgren, KarinCederwal, BoDoncel, MariaHadinia, BaharakSandzelius, Mikael
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