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SPECTRA OF Ti$sup 51$, CR/ SUP 53/, AND Fe$sup 55$ AND THE UNIFIED MODEL

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

The spectrum and level properties of Ti/sup 51/ were investigated by the reaction Ti/sup 50/(d,p)Ti/sup 51/ using a high-resolution magnetic analysis system. The four nuclei Ca/sup 49/, Ti/sup 51/, Cr/sup 53/, and Fe/sup 55/ have an odd neutron outside a closed f/sub 7/2/, neutron shell. The spectrum of Ca/ sup 49/ as observed in a (d,p) reaction on Ca/sup 48/ is single-particle-like. In the other nuclei, the neutron single-particle states are fragmented to varying degrees. An attempt was made to study the information available for Ti/sup 51/, Cr/sup 53/, and Fe/sup 55/ on the basis of the unified model by coupling the p/ sub 3/2/, p/sub 1/2/, and f/sub 5/2/, shell model states to a quadrupole vibrational core. Core states of up to three phonons were included in the calculation. Reasonable agreement was obtained with the excitations and transition strengths of the low-lying levels of the three nuclei as observed in (d,p) reactions on the corresponding eveneven nuclei. In the case of Cr/sup 53/ which is stable, additional experimental information is available, viz., the ground state magnetic moment, the static quadrupole moment and the lifetime of the 2.32-Mev level. Using the model wavefunctions obtained for Cr/sup 53/, these quantities were computed and found to be in poor agreement with the experimentally observed values. (auth)

Research Organization:
Univ. of Michigan, Ann Arbor
NSA Number:
NSA-18-002922
OSTI ID:
4135834
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 132; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English