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Dynamic polarization by Coulomb excitation in the closed formalism for heavy ion scattering

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

We present a closed-form treatment of the effects of dynamic polarization by Coulomb excitation on the elastic scattering of deformed heavy ions. We assume that this interaction can be represented by an absorptive polarization potential. The relatively long range of this potential entails a relatively slow variation of the associated reflection function inl-space. This feature leads to a simple generalization of the closed formula derived previously for the elastic scattering amplitude of spherical heavy nuclei. We use both the polarization potential of Love et al. and the recent improved potential of Baltz et al. to derive explicit expressions for the associated reflection functions in a Coulombdistorted eikonal approximation. As an example we analyze the elastic scattering of 90-MeV18O ions by184W and show that both results give a quantitative description of the data.

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Authors and Affiliations

  1. Physics Department, University of Cape Town, Rondebosch, South Africa

    W. E. Frahn & T. F. Hill

Authors
  1. W. E. Frahn
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  2. T. F. Hill
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Additional information

We thank Kenneth Kauffmann for sending us a preprint of [4] at an early stage of our work. While the present paper was being completed, Dr. Kauffmann informed us that he and his colleagues at Berkeley have independently used similar methods to derive a closed formulation for dynamic polarization above the Coulomb barrier.

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Frahn, W.E., Hill, T.F. Dynamic polarization by Coulomb excitation in the closed formalism for heavy ion scattering. Z Physik A 285, 315–322 (1978). https://doi.org/10.1007/BF01408245

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