Pronounced shape change induced by quasiparticle alignment - art. no. 031303

Authors
Algora, A de Angelis, G Brandolini, F Wyss, R Gadea, A Farnea, E Gelletly, W Lunardi, S Bazzacco, D Fahlander, C Aprahamian, A Becker, F Bizzeti, PG Bizzeti-Sona, A de Acuna, D De Poli, M Eberth, J Foltescu, D Lenzi, SM Martinez, T Napoli, DR Pavan, P Petrache, CM Alvarez, CR Rudolph, D Rubio, B Skoda, S Spolaore, P Menegazzo, R Thomas, HG Ur, CA
Citation
A. Algora et al., Pronounced shape change induced by quasiparticle alignment - art. no. 031303, PHYS REV C, 6103(3), 2000, pp. 1303
Citations number
23
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
05562813 → ACNP
Volume
6103
Issue
3
Year of publication
2000
Database
ISI
SICI code
0556-2813(200003)6103:3<1303:PSCIBQ>2.0.ZU;2-P
Abstract
Mean lifetimes of high-spin states of Kr-74 have been determined using the Doppler-shift attenuation method. The high-spin states were studied using t he Ca-40(Ca-40, alpha 2p) reaction at a beam energy of 160 MeV with the GAS P gamma-ray spectrometer. The ground-state band and negative parity side ba nd show the presence of three different configurations in terms of transiti onal quadrupole deformations. A dramatic shape change was found along the g round-state band after the S-band crossing. The deduced quadrupole deformat ion changes are well reproduced by cranked Woods-Saxon Strutinsky calculati ons.