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DSAM lifetime measurements for the chiral bands in 194TI

: 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.

Fulltext urn:nbn:de:0011-n-4105084 (1.0 MByte PDF)
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Created on: 17.8.2016

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Journal of physics. Conference series 724 (2016), No.1, Art. 012028, 6 pp.
ISSN: 1742-6588
ISSN: 1742-6596
International School on Nuclear Physics and Applications <21, 2015, Varna>
International Symposium on Exotic Nuclei (ISEN) <2015, Varna>
Journal Article, Conference Paper, Electronic Publication
Fraunhofer INT ()

When a left-handed and a right-handed nuclear system form in angular momentum space, a pair of nearly degenerate rotational bands is observed. To identify chiral symmetry most important is to establish near-degeneracy not only in excitation energies of the partner bands, but also in their intra-band and inter-band B(M1) and B(E2) transition probabilities. This needs dedicated lifetime measurements. Such measurements were performed for four bands of 194Tl. Two of these have very close near-degeneracy and form a prime candidate for best chiral pair. The lifetime measurements confirm the excellent near-degeneracy in this chiral pair.