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Nonlinear energy-loss straggling of protons and antiprotons in an electron gas

Neng-ping Wang·J. M. Pitarke
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Abstract

The electronic energy-loss straggling of protons and antiprotons moving at arbitrary nonrelativistic velocities in a homogeneous electron gas are evaluated within a quadratic response theory and the random-phase approximation (RPA). These results show that at low and intermediate velocities quadratic corrections reduce significantly the energy-loss straggling of antiprotons, these corrections being, at low-velocities, more important than in the evaluation of the stopping power.

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BibTeXRIS

Neng-ping Wang, J. M. Pitarke. 1998-04-22. Nonlinear energy-loss straggling of protons and antiprotons in an electron gas. https://doi.org/10.1103/physreva.57.4053

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