Rotational bands and chirality in 194Tl

P. L. Masiteng; E. A. Lawrie; T. M. Ramashidzha; J. J. Lawrie; R. A. Bark; 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; D. G. Roux; J. F. Sharpey-Schafer; O. Shirinda; P. A. Vymers

doi:10.1140/epja/i2014-14119-5

2021 Impact factor 3.131

Hadrons and Nuclei

Eur. Phys. J. A (2014) 50: 119
https://doi.org/10.1140/epja/i2014-14119-5

Regular Article - Experimental Physics

Rotational bands and chirality in ¹⁹⁴Tl

P. L. Masiteng¹^,2^,3^*, E. A. Lawrie¹, T. M. Ramashidzha¹^,2, J. J. Lawrie¹, R. A. Bark¹, R. Lindsay², F. Komati¹^,4, J. Kau¹^,4, P. Maine¹^,2, S. M. Maliage¹^,2, I. Matamba⁵, S. M. Mullins¹, S. H. T. Murray¹, K. P. Mutshena¹^,6, A. A. Pasternak⁷, D. G. Roux²^,8, J. F. Sharpey-Schafer¹^,2, O. Shirinda¹^,2 and P. A. Vymers¹^,2

¹ iThemba LABS, National Research Foundation, P.O. Box 722, 7129, Somerset West, South Africa
² University of the Western Cape, Private Bag X17, 7535, Bellville, South Africa
³ University of Johannesburg, P.O. Box 524, 2006, Auckland Park, South Africa
⁴ University of North West, Private Bag X2046, 2735, Mmabatho, South Africa
⁵ University of Venda for Science and Technology, Thohoyandou, South Africa
⁶ University of Venda for Science and Technology, Private Bag X5050, Thohoyandou, South Africa
⁷ A.F. Ioffe Physical-Technical Institute, 194021, St.-Petersburg, Russia
⁸ Rhodes University, P.O. Box 94, 6140, Grahamstown, South Africa

^* e-mail: plmasiteng@uj.ac.za

Received: 13 March 2014
Revised: 3 July 2014
Accepted: 8 July 2014
Published online: 30 July 2014

Abstract

The high-spin states in ¹⁹⁴Tl were studied using the ¹⁸¹Ta(¹⁸O, 5n) reaction and the AFRODITE -ray spectrometer at iThemba LABS. The level scheme of ¹⁹⁴Tl was considerably extended with several new bands. Three negative-parity 4-quasiparticle bands were observed and associated with configurations. Two of these form a candidate chiral pair with excellent near-degeneracy. In addition two new positive-parity bands were found.