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Angular and energy differential electron emission cross sections in collisions between antiprotons and helium atoms

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Abstract

We present theoretical singly- and doubly-differential ionization cross sections in collisions between antiprotons and helium atoms at 50 and 100 keV impact energies. The calculations were performed within the frame work of the continuum distorted wave eikonal initial state approximation and a three-body classical trajectory Monte Carlo method. We find clear evidence for the formation of the anti-cusp in the differential distributions.

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Authors and Affiliations

  1. Institute of Nuclear Research of the Hungarian Academy of Sciences, (ATOMKI), 4001, Debrecen, P.O. Box 51, Hungary, EU

    K. Tőkési & L. Gulyás

  2. Department of Physics, University of Massachusetts Dartmouth, North Dartmouth, MA, 02747, USA

    J. Wang

  3. Institute for Theoretical Physics, Vienna University of Technology, A1040, Vienna, Austria, EU

    J. Burgdörfer

Authors
  1. K. Tőkési
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  2. J. Wang
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  3. L. Gulyás
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  4. J. Burgdörfer
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Correspondence to K. Tőkési.

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Tőkési, K., Wang, J., Gulyás, L. et al. Angular and energy differential electron emission cross sections in collisions between antiprotons and helium atoms. Hyperfine Interact 194, 45–50 (2009). https://doi.org/10.1007/s10751-009-0028-3

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