Elsevier

Nuclear Physics A

Volume 162, Issue 3, 22 February 1971, Pages 657-672
Nuclear Physics A

The 39K(3He, 3He)39K and 39K(3He, d)40Ca reactions at 29.3 MeV

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Abstract

The 39K(3He, d)40Ca reaction has been employed to study proton particle-hole states of 40Ca. A 39K(3He, 3He)39K elastic scattering experiment was also performed to obtain 3He optical-model parameter sets necessary for a DWBA analysis of the (3He, d) data. The 39K(3He, d)40Ca reaction provided information on the ground state of 40Ca and 17 excited states. Angular distributions, partial strengths and spectroscopic factors were extracted for 14 of these states, and agreed generally with the results found by Erskine, Seth et al. and Forster et al. at lower bombarding energies. Proton particle-hole states, presumed to have (1d32 −1f72)J = 2, 3, 4, 5T = 0, 1 and (1d32 −12p32)J = 0, 1, 2, 3T = 0 configurations, were observed. Our results compare favorably with the 39K(d, n)40Ca work of Fuchs et al. and the shell-model predictions of Gerace and Green, but not with the calculations of Gillet and Sanderson.

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    Work supported in part by the United States Atomic Energy Commission under contract AT(11-1)-535.

    Present address: Department of Physics, The University of Birmingham, Birmingham, England.

    ††

    Present address: Department of Physics, The University of British Columbia, Vancouver, B.C., Canada.

    †††

    Present address: Niels Bohr Institute, Copenhagen Denmark.

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