Signature inversion in odd-odd nuclei

Citation
Ll. Riedinger et al., Signature inversion in odd-odd nuclei, ACT PHY P B, 32(9), 2001, pp. 2613-2623
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
0587-4254 → ACNP
Volume
32
Issue
9
Year of publication
2001
Pages
2613 - 2623
Database
ISI
SICI code
0587-4254(200109)32:9<2613:SIION>2.0.ZU;2-P
Abstract
Trends in the energy staggering of the pih(11)/(2)nui(13/2) and pih(11)/(2) nuh(11/2) bands in the mass 160 and 130 regions, respectively, have been in vestigated in order to better understand the origin of signature inversion. While the A approximate to 160 nuclei behave in a consistent manner, a mor e complicated scenario is observed in the mass 130 region. As a result of o ur experiments on the lightest Pr nuclei, the systematics of these Z = 59 n uclei have been extended, which aids in the understanding of the latter reg ion. Triaxial deformation, a pn interaction, and quadrupole pairing are con sidered as possible contributors to this effect. As all the chiral-twin ban ds that are known have signature inversion in the favored band, a possible link between the two phenomena should be considered.