Near-degenerate rotational bands in the Tl isotopes
Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
Jagellonian University
Abstract
Sets of near-degenerate rotational bands built on configurations involving
nh9/2 particle and vi13/2 holes were observed in the neighbouring
193;194Tl isotopes. Such sets of bands, involving particle and hole configurations
and occurring in nuclei with triaxial shape, are caused by chiral
symmetry formed in angular momentum space. Each nuclear chiral system
is expected to generate a pair of near-degenerate partner bands. However,
several sets of three partner bands were observed in these Tl isotopes, raising
questions whether one or two chiral systems are formed, and which
two bands are partners in the chiral pair. Many-particle-rotor model calculations
reproduce well the features of the observed negative-parity bands
in 193;194Tl and support the suggested chiral geometry of the angular momenta.
Description
CITATION: Lawrie, E. A., et al. 2018. Near-degenerate rotational rands in the Tl isotopes. Acta Physica Polonica B Proceedings Supplement, 11(1):81-87, doi:10.5506/APhysPolBSupp.11.81.
The original publication is available at https://www.actaphys.uj.edu.pl
The original publication is available at https://www.actaphys.uj.edu.pl
Keywords
Nuclear chiral system, Rotational bands, Particles (Nuclear physics) -- Chirality, Thallium -- Isotopes -- Chirality
Citation
Lawrie, E. A., et al. 2018. Near-degenerate rotational rands in the Tl isotopes. Acta Physica Polonica B Proceedings Supplement, 11(1):81-87, doi:10.5506/APhysPolBSupp.11.81