Abstract
SynopsisA fully quantum-mechanical convergent close-coupling approach to proton collisions with atomic hydrogen has been developed. Cross sections for target ionisation and electron capture by the projectile have been calculated in the energy range from 20 keV to 1 MeV. Calculated electron capture cross sections are in good agreement with the experiment, however for ionisation discrepancies between theory and experiment at intermediate energies still remain.
Highlights
Cross sections for target ionisation and electron capture by the projectile have been calculated in the energy range from 20 keV to 1 MeV
Accurate knowledge of charge exchange, excitation and ionisation processes occurring during collisions between positive ions and various atomic and molecular targets is important in a number of fields including astrophysics, plasma physics, atmospheric modelling and hadron therapy
Proton-hydrogen scattering is the simplest prototype of such collisions
Summary
Accurate knowledge of charge exchange, excitation and ionisation processes occurring during collisions between positive ions and various atomic and molecular targets is important in a number of fields including astrophysics, plasma physics, atmospheric modelling and hadron therapy. Proton-hydrogen scattering is the simplest prototype of such collisions. Even for this simplest three-body system there is no agreement between theory and experiment when ionisation is concerned.
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