1f/sub 7/2/ neutron hole strength in /sup 59/Ni with the /sup 60/Ni(p,d)/sup 59/Ni reaction at 94 MeV

Journal Article · Mon Aug 01 04:00:00 EDT 1983 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.28.642· OSTI ID:5602914

Nann, H; Miller, D W; Jacobs, W W; Devins, D W; Jones, W P; van Hees, A G.M.

The /sup 60/Ni(p,d)/sup 59/Ni reaction has been studied with 94-MeV polarized protons. Angular distributions of the differential cross section and analyzing power have been measured for states in /sup 59/Ni up to an excitation energy of 4.8 MeV. A characteristic j dependence of the (p,d) analyzing powers was observed for l = 1 and l = 3 transfers, which allowed reliable spin determinations to be made for hole states in /sup 59/Ni. As a result, spins of 7/2/sup -/ were assigned to the levels at 2.63, 3.04, 3.73, 4.16, 4.23, 4.56, and 4.69 MeV in /sup 59/Ni. Standard distorted-wave Born approximation calculations have been performed and their predictive power to describe the shape of the differential cross section and analyzing power angular distributions was tested as a function of the input parameters. No large discrepancies between calculated and experimental cross sections were found. Relative spectroscopic factors for the neutron pickup from the 1f/sub 7/2/ orbital were extracted and compared to recent shell-model predictions. These shell-model calculations account quite well for the centroid of the observed 1f/sub 7/2/ neutron hole distribution but fail to reproduce the strength distribution.

• Research Organization: Department of Physics, Indiana University, Bloomington, Indiana 47405
• OSTI ID: 5602914
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 28:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYON REACTIONS
BEAMS
BETA DECAY RADIOISOTOPES
BORN APPROXIMATION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DEUTERONS
DIFFERENTIAL CROSS SECTIONS
DIRECT REACTIONS
DISTRIBUTION
DWBA
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
EVEN-ODD NUCLEI
HADRON REACTIONS
HOLES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
NICKEL 59
NICKEL 60 TARGET
NICKEL ISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PARITY
PARTICLE PROPERTIES
PICKUP REACTIONS
POLARIZED BEAMS
PROTON REACTIONS
RADIOISOTOPES
SHELL MODELS
SPIN
TARGETS
TRANSFER REACTIONS
YEARS LIVING RADIOISOTOPES