Using local momentum to disentangle angular distributions. [Optical model, DWBA]

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Optical model elastic and DWBA transfer angular distributions are studied by isolating their positive and negative deflection angle components. The local angular momentum of these amplitudes allows isolation of the regions of angular momentum space that are contributing to the different angular regions of the cross sections. This information can be employed to isolate features of the cross sections arising from orbiting, reflection, Coulomb rainbows, nuclear rainbows, Regge poles, etc. Specifically it is shown that the inner contribution to typical heavy-ion forward-angle elastic scattering is in the shadow of the nuclear rainbow and further that transfer angular distributions contain separate ... continued below

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Pages: 8

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Fuller, R. C. & Moffa, P. J. March 1, 1976.

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Description

Optical model elastic and DWBA transfer angular distributions are studied by isolating their positive and negative deflection angle components. The local angular momentum of these amplitudes allows isolation of the regions of angular momentum space that are contributing to the different angular regions of the cross sections. This information can be employed to isolate features of the cross sections arising from orbiting, reflection, Coulomb rainbows, nuclear rainbows, Regge poles, etc. Specifically it is shown that the inner contribution to typical heavy-ion forward-angle elastic scattering is in the shadow of the nuclear rainbow and further that transfer angular distributions contain separate inner and outer contributions. Before discussing results, the idea of a ''local momentum'' is introduced and the decomposition of angular distributions into their positive and negative deflection angle components is briefly described. Results are shown for the reaction /sup 60/Ni(/sup 13/C,/sup 12/C)/sup 61/Ni at E = 60.8 MeV and for the elastic scattering of /sup 13/C on /sup 60/Ni at the same incident energy. (SDF)

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Pages: 8

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Dep. NTIS

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  • Symposium on macroscopic features of heavy ion collisions, Argonne, IL, USA, 1 Apr 1976

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  • Report No.: BNL-21199
  • Report No.: CONF-760424-15
  • Grant Number: E(30-1)-16
  • Office of Scientific & Technical Information Report Number: 7268505
  • Archival Resource Key: ark:/67531/metadc1448311

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 1, 1976

Added to The UNT Digital Library

  • Feb. 10, 2019, 8:45 p.m.

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  • March 7, 2019, 5:49 p.m.

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Fuller, R. C. & Moffa, P. J. Using local momentum to disentangle angular distributions. [Optical model, DWBA], article, March 1, 1976; Upton, New York. (https://digital.library.unt.edu/ark:/67531/metadc1448311/: accessed July 15, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.