Intrinsic proton states around the superdeformed shell closure Z=80

Citation
S. Bouneau et al., Intrinsic proton states around the superdeformed shell closure Z=80, PHYS REV C, 58(6), 1998, pp. 3260-3265
Citations number
28
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
0556-2813 → ACNP
Volume
58
Issue
6
Year of publication
1998
Pages
3260 - 3265
Database
ISI
SICI code
0556-2813(199812)58:6<3260:IPSATS>2.0.ZU;2-G
Abstract
High spin states in Tl-193 have been populated by the Ta-181(O-16, 6n) reac tion at 110 MeV and gamma-ray spectroscopy was performed using the EUROGAM Il array. In addition to the two known superdeformed (SD) bands, three new superdeformed bands have been identified. The dynamic moments of inertia of two of these new bands display a sudden and opposite change of slope and t wo of them have identical transition energies within 2 keV. The behavior of their dynamic moments of inertia and their gamma transitions allowed us to propose configurations for the proton orbitals involved around the SD shel l closure Z = 80. The intrinsic proton states identified are the two signat ure partners of the [411]1/2 and the negative signature of the [651]1/2 orb itals. Their properties are compared to the predictions of two theoretical calculations. [S0556-2813(98)04312-X].