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Level structure of odd-mass Pr isotopes: Decay of 3. 0-min /sup 145/Ce to levels of /sup 145/Pr

Journal Article · · Phys. Rev. C; (United States)
The structure of /sup 145/Pr has been investigated by measuring the gamma-ray singles, gamma-ray coincidence, and gamma-ray angular correlation spectra, along with conversion-electron singles spectra for the decay of 3.0-min /sup 145/Ce to levels of /sup 145/Pr. A level scheme is proposed that includes a number of new levels as well as new spin and parity assignments for several levels. The conversion-coefficient measurements establish the presence of a low-energy (3/2/sup -/) level at 787 keV whose strong population in beta decay confirms negative parity for the ground state of /sup 145/Ce. Interacting boson-fermion model calculations for /sup 143/Pr and /sup 145/Pr are found to be in reasonable agreement with the observed low-energy positive-parity levels, while the presence of the low-energy (3/2/sup -/) level suggests the coexistence of more deformed configurations.
Research Organization:
Department of Chemistry, University of Maryland, College Park, Maryland 20742
OSTI ID:
6453242
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 39:4; ISSN PRVCA
Country of Publication:
United States
Language:
English

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