BROKEN PAIRS AND EVOLUTION OF COLLECTIVITY IN THE A-APPROXIMATE-TO-140 MASS REGION - HIGH-SPIN STATES OF THE ND-138(60)78 NUCLEUS

Authors
DEANGELIS G CARDONA MA DEPOLI M LUNARDI S BAZZACCO D BRANDOLINI F VRETENAR D BONSIGNORI G SAVOIA M WYS R TERRASI F ROCA V
Citation
G. Deangelis et al., BROKEN PAIRS AND EVOLUTION OF COLLECTIVITY IN THE A-APPROXIMATE-TO-140 MASS REGION - HIGH-SPIN STATES OF THE ND-138(60)78 NUCLEUS, Physical review. C. Nuclear physics, 49(6), 1994, pp. 2990-2999
Citations number
29
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
49
Issue
6
Year of publication
1994
Pages
2990 - 2999
Database
ISI
SICI code
0556-2813(1994)49:6<2990:BPAEOC>2.0.ZU;2-2
Abstract
An in-beam gamma-ray study performed with the Sb-121 (F-19,4n) reactio n has established the high spin level structure of the N = 78 nucleus 138Nd. States up to I = 21hBAR and 8.5 MeV excitation energy have been identified. High spin states are described in the framework of the cr anking model and of the interacting boson model with broken pairs. The calculations reproduce levels up to I = 18hBAR including the two 10states which, from the feeding cascades, are identified as the nuh112( -2) and pih11/2(2) excitations. Cranked Strutinsky type calculations p redict opposite shapes for the two different types of excitations.