Close near-degeneracy in a pair of four-quasiparticle bands in Tl-194

P. L. Masiteng, E. A. Lawrie, T. M. Ramashidzha, R. A. Bark, Gillis Carlsson, J. J. Lawrie, R. Lindsay, F. Komati, J. Kau, P. Maine, S. M. Maliage, I. Matamba, S. M. Mullins, S. H. T. Murray, K. P. Mutshena, A. A. Pasternak, Ingemar Ragnarsson, D. G. Roux, J. F. Sharpey-Schafer, O. ShirindaP. A. Vymers

Research output: Contribution to journalArticlepeer-review

Abstract

A pair of rotational bands associated with the pi h(9/2) circle times nu i(13/2)(-1) configuration at lower spins and with the pi h(9/2) circle times nu i(13/2)(-3) configuration at higher spins is found in Tl-194. The two 4-quasiparticle bands show exceptionally close near-degeneracy in the excitation energies. Furthermore close similarity is also found in their alignments and B(M1)/B(E2) reduced transition probability ratios. Such close near-degeneracy probably indicates chiral geometry in the angular momentum space. (c) 2013 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)83-88
JournalPhysics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume719
Issue number1-3
DOIs
Publication statusPublished - 2013

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

  • Physical Sciences

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