Nuclear absorption effects in the elastic scattering of B10 and B11 by Al27, Si28, and Si30

L. A. Parks, K. W. Kemper, R. I. Cutler, and L. H. Harwood
Phys. Rev. C 19, 2206 – Published 1 June 1979
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Abstract

Elastic scattering angular distributions for B10,11 + Al27, Si28,30 at Elab=41.6 and 50 MeV, B10,11 + Si28 at Elab=33.7 MeV, and B11 + Si28 at Elab=41.1 and 42.1 MeV have been measured. At each energy all angular distributions show similar oscillatory structure for σσR>103, except for B11 + Si28, which is comparatively structureless. The inelastic scattering angular distributions of the first excited 2+ states in Si28 by B10,11 at Elab=33.7, 41.6, and 50 MeV, and in Si30 by B10,11 at 50 MeV and by B10 at 41.6 MeV are presented. Relative direct transfer reaction strengths for B11 + Al27 and B11 + Si28 were measured at 49.5 MeV. The differences in the measured elastic scattering angular distributions can be explained by stronger direct transfer reaction channels in B11 + Si28.

NUCLEAR REACTIONS: Al27(B10,11, B10,11)Al27, E=41.6 and 50 MeV; Si28,30(B10,11, B10,11)Si28,30, elastic and Si inelastic (Si28, 2+, 1.78 MeV; Si30, 2+, 2.23 MeV), E=33.7, 41.6, and 50 MeV. Measured σ(θ), deduced optical model parameters and Si 2+ deformation lengths. Measured particle transfer cross sections, B11+Al27, Si28 E=49.5 MeV, θL=14.7°, 18°, and 21°.

  • Received 16 January 1979

DOI:https://doi.org/10.1103/PhysRevC.19.2206

©1979 American Physical Society

Authors & Affiliations

L. A. Parks*, K. W. Kemper, R. I. Cutler, and L. H. Harwood

  • Department of Physics, Florida State University, Tallahassee, Florida 32306

  • *Present address: IRT Corporation, San Diego, California 92138.
  • Present address: Cyclotron Laboratory, Department of Physics, Michigan State University, East Lansing, Michigan 48824.

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Vol. 19, Iss. 6 — June 1979

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