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Reinvestigation of the collective band structures in odd-odd Pm-138 nucleus
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.ORCID iD: 0000-0003-2843-0582
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.ORCID iD: 0000-0002-1406-5695
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2015 (English)In: European Physical Journal A, ISSN 1434-6001, E-ISSN 1434-601X, Vol. 51, no 5, 60Article in journal (Refereed) Published
Abstract [en]

The high-spin states in the odd-odd Pm-138 nucleus have been reinvestigated via the Te-124(F-19, 5n) reaction at the beam energy of 103MeV. Most of the known transitions and levels are confirmed. A number of bands are revised and one new band has been established. For the yrast pi h(11/2) circle times nu h(11/2) band based on 8(+) state, no evidence supporting the occurence of signature inversion is found. The experimental and theoretical B(M1)/B(E2) ratios have been calculated for band (2), which support the pi g(7/2)[413]5/2(+) circle times nu h(11/2)[514]9/2(-) Nilsson configuration assignment. Four bands with Delta I = 2 transitions are tentatively assigned as doubly decoupled bands. The other three bands are proposed as oblate-triaxial bands. The possible configuration assignments for these bands are also discussed under the calculations of total Routhian surface and particle-rotor model.

Place, publisher, year, edition, pages
2015. Vol. 51, no 5, 60
Keyword [en]
High-Spin States, Rotational Bands, Shape Coexistence, Ba-132, Pr-134
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-169255DOI: 10.1140/epja/i2015-15060-9ISI: 000354902800001ScopusID: 2-s2.0-84930001995OAI: diva2:821966

QC 20150616

Available from: 2015-06-16 Created: 2015-06-12 Last updated: 2015-07-10Bibliographically approved

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Li, HongjieQi, Chong
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