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Octupole states in /sup 63/Cu and the weak-coupling picture

Journal Article · · Phys. Rev., C; (United States)
A high-resolution experiment of proton inelastic scattering by /sup 63/Cu at E/sub p/ = 40 MeV has resolved three octupole states at E/sub x/ = 3.81, 3.84, and 3.89 MeV for the first time, thus showing the existence of seven strong octupole states in /sup 63/Cu. This finding is direct evidence that the traditional simple weak-coupling model in terms of one quartet 2p/sub 3/2/ x 3/sup -//sub 1/ is inadequate for the octupole core-excited states in /sup 63/Cu. This is not evidence, however, that the weak-coupling picture in general is incorrect for the octupole states in /sup 63/Cu. It is shown that to be consistent with the present experimental data, the weak-coupling picture for the octupole states requires a ground-state wave function substantially different from the ground-state wave function of the conventional particle-core-coupling model.
Research Organization:
Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
OSTI ID:
6125449
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 20:2; ISSN PRVCA
Country of Publication:
United States
Language:
English