Inelastic electron scattering from Ca48

J. E. Wise, J. S. McCarthy, R. Altemus, B. E. Norum, R. R. Whitney, J. Heisenberg, J. Dawson, and O. Schwentker
Phys. Rev. C 31, 1699 – Published 1 May 1985
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Abstract

Inelastic electron scattering from Ca48 has been performed over a momentum transfer range from 0.6 to 3.0 fm1 in both forward and backward directions. Form factors have been obtained for 25 levels up to 10 MeV excitation. Charge and current densities for 11 low lying electric transitions and current densities for two magnetic transitions have been reconstructed in Fourier Bessel analysis. Three high spin states observed in the region of 9 MeV excitation are found to have the dominant configuration ν(1g9/2,1f7/21)8 but with a total strength of only 36% predicted for the first 8 in a random-phase-approximation calculation. This is interpreted as evidence for particle-phonon coupling. Comparisons of the extracted densities are made with random-phase-approximation calculations using a zero-range, density-dependent Migdal interaction.

  • Received 1 October 1984

DOI:https://doi.org/10.1103/PhysRevC.31.1699

©1985 American Physical Society

Authors & Affiliations

J. E. Wise, J. S. McCarthy, R. Altemus, B. E. Norum, and R. R. Whitney

  • Department of Physics, University of Virginia, Charlottesville, Virginia 22901

J. Heisenberg, J. Dawson, and O. Schwentker

  • Department of Physics, University of New Hampshire, Durham, New Hampshire 03824

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Vol. 31, Iss. 5 — May 1985

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