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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Possible chirality in the doubly-odd Tl198 nucleus: Residual interaction at play
Physical Review C - Nuclear Physics, Volume 78, No. 2, Article 021305, Year 2008
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Description
A candidate for chiral bands was found in Tl198 for the first time in a mass region of oblate (or nonaxial with γ≥30°) deformed nuclei. Two bands show very similar quasiparticle alignments, moments of inertia, and B(M1)/B(E2) ratios. They have a relative excitation energy of about 500 keV and different patterns of energy staggering. Calculations using the two-quasiparticle-plus-triaxial-rotor model with residual proton-neutron interaction included show that a triaxial deformation with γ~44° agrees very well with all the experimental observations. Furthermore, considerable energy staggering for both partner bands was calculated for this πh9/2 νi13/2-1 configuration at γ~30°, suggesting that chiral bands may have substantial energy staggering. © 2008 The American Physical Society.
Authors & Co-Authors
Lawrie, Elena A.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
Vymers, P. A.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
South Africa, Bellville
University of the Western Cape
Lawrie, J. J.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
Vieu, C. H.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Bark, Robert A.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
Lindsay, R.
South Africa, Bellville
University of the Western Cape
Mabala, G. K.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
South Africa, Cape Town
University of Cape Town
Maliage, S. M.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
South Africa, Bellville
University of the Western Cape
Masiteng, P. L.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
South Africa, Bellville
University of the Western Cape
Mullins, Simon M.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
Murray, Sean H.T.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
Ragnarsson, Ingemar
Sweden, Lund
Lunds Universitet
Ramashidzha, T. M.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
South Africa, Bellville
University of the Western Cape
Schück, C.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Sharpey-Schafer, John F.
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
South Africa, Bellville
University of the Western Cape
Shirinda, Obed
South Africa, Somerset West
Ithemba Laboratory for Accelerator-based Sciences
South Africa, Bellville
University of the Western Cape
Statistics
Citations: 54
Authors: 16
Affiliations: 5
Identifiers
Doi:
10.1103/PhysRevC.78.021305
ISSN:
05562813
e-ISSN:
1089490X