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Mean-Field Approximation to p + He Scattering

Sandhya Devi, K. R. and Koonin, S. E. (1981) Mean-Field Approximation to p + He Scattering. Physical Review Letters, 47 (1). pp. 27-30. ISSN 0031-9007.

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The scattering of protons by helium atoms is studied in a mean-field approximation to the many-body S matrix. The one-body equations governing the electron dynamics for elastic scattering are solved iteratively beginning with the interaction-picture time-dependent Hartree-Fock (TDHF) solution. At a representative proton laboratory energy of 20 keV, the converged S-matrix elements are within 10% of the TDHF value. Inclusive single-charge transfer probabilities calculated in the interaction-picture TDHF approximation agree reasonably well with the experimental data.

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Additional Information:©1981 The American Physical Society Useful comments and suggestions by Dr. Y. Alhassid at various stages of this work are gratefully acknowledged. We would also like to thank Dr. S. Levit, Dr. C. Bottcher, Dr. K. Kulander, and Dr. M.R Strayer for fruitful discussions. This work was supported in part by the National Science Foundation under Grant No. PHY77-21602. One of us (S.E.K.) would like to thank the Alfred P. Sloan Foundation for providing a fellowship.
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Deposited On:03 Jan 2007
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