Signature inversion and the first observation of a magnetic dipole band inodd-odd rubidium isotopes: Rb-82

Citation
J. Doring et al., Signature inversion and the first observation of a magnetic dipole band inodd-odd rubidium isotopes: Rb-82, PHYS REV C, 59(1), 1999, pp. 71-81
Citations number
50
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
0556-2813 → ACNP
Volume
59
Issue
1
Year of publication
1999
Pages
71 - 81
Database
ISI
SICI code
0556-2813(199901)59:1<71:SIATFO>2.0.ZU;2-#
Abstract
High-spin states in Rb-82 were studied through the Zn-68(O-18,p3n) reaction at 56 MeV beam energy via a thin target coincidence measurement. The known sequence of positive-parity states built on the 6(+) state at 191.3 keV wa s extended up to spin 14, and signature inversion was observed around spin 11. Above spin 8 the observed properties of this band indicate a rotationli ke structure. A new high-lying level sequence connected by Delta I=1 transi tions was identified. This magnetic dipole sequence is built on a new (11(- )) level at 2617.3 keV excitation energy which is interpreted as a pi(g(9/2 ))(2) x pi(P-3/2, f(5/2)) x nu g(9/2) four-quasiparticle state at small qua drupole deformation. [S0556-2813(99)04301-0].