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DSAM lifetime measurements for the chiral pair in 194Tl

: Masiteng, P.L.; Pasternak, A.A.; Lawrie, E.A.; Shirinda, O.; Lawrie, J.J.; Bark, R.A.; Bvumbi, S.P.; Kheswa, N.Y.; Lindsay, R.; Lieder, E.O.; Lieder, R.M.; Madiba, T.E.; Mullins, S.M.; Murray, S.H.T.; Ndayishimye, J.; Ntshangase, S.S.; Papka, P.; Sharpey-Schafer, J.F.

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The European physical journal. A, Hadrons and nuclei 52 (2016), No.2, Art. 28, 6 pp.
ISSN: 1434-6001
ISSN: 1434-601X
ISSN: 1431-5831
Journal Article, Electronic Publication
Fraunhofer INT ()

Most important for the identification of chiral symmetry in atomic nuclei is to establish a pair of bands that are near-degenerate in energy, but also in B(M1) and B(E2) transition probabilities. Dedicated lifetime measurements were performed for four bands of 194Tl, including the pair of four-quasiparticle chiral bands with close near-degeneracy, considered as a prime candidate for best chiral symmetry pair. The lifetime measurements confirm the excellent near-degeneracy in this pair and indicate that a third band may be involved in the chiral symmetry scenario.