High-spin states inRu 90 and the projected shell model description
Author(s) -
D. Bucurescu,
N. Mărginean,
C. Rossi Alvarez,
Yang Sun,
C. A. Ur,
L. Mihailescu,
G. Suliman,
D. Bazzacco,
S. Lunardi,
G. de Angelis,
M. Axiotis,
E. Farnea,
A. Gadea,
M. Ionescu–Bujor,
A. Iordăchescu,
W. Królas,
Th. Kröll,
S. M. Lenzi,
T. Martínez,
R. Menegazzo,
D. R. Napoli,
P. Pavan,
Zs. Podolyák,
C. Rusu,
M. De Poli,
B. Quintana,
P. Spolaore
Publication year - 2004
Publication title -
physical review c
Language(s) - English
Resource type - Journals
eISSN - 1089-490X
pISSN - 0556-2813
DOI - 10.1103/physrevc.69.064319
Subject(s) - yrast , physics , parity (physics) , basis (linear algebra) , nucleus , shell model , spin (aerodynamics) , atomic physics , neutron , nuclear physics , geometry , medicine , mathematics , thermodynamics , psychiatry
The neutron deficient Asimilar to90 nuclei constitute a good testing ground for shell model approaches based on spherical or deformed basis. New experimental data are presented for the Ru-90 nucleus, as obtained with the reaction Ca-40+Ni-58 at 135 MeV. The yrast band has been extended to higher spin states and a new band, tentatively assigned as a negative parity band, has been identified. The observed structures are compared with predictions of the projected shell model, which uses a deformed basis. Possibility of the occurrence of low-lying high- K states in this nucleus is discussed.
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