Abstract

The fully differential cross section for positron-impact ionisation of hydrogen is calculated in a two-centre Born approximation. It is suggested that two-centre approaches to the problem should assume incoherent combination of contributions from direct ionisation of the atom and positronium formation in continuum.

Highlights

  • We consider fully differential positron-impact ionisation of H

  • fully differential cross section for positron-impact ionisation of hydrogen is calculated in a twocentre Born approximation

  • that two-centre approaches to the problem should assume incoherent combination

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