Charge transfer in proton–helium collisions from low to high energy

J Loreau, S Ryabchenko, N Vaeck
2014 Journal of Physics B: Atomic, Molecular and Optical Physics  
The cross section for charge transfer in proton-helium collisions has been computed in the energy range from 10 eV/u up to 10 MeV/u. Four different methods (full quantal time-independent and time-dependent methods, molecular and atomic basis set semi-classical approaches) valid in different energy regimes have been used to calculate the partial and total cross section for single-electron capture. The results are compared with previous theoretical calculations and experimental measurements and
more » ... e different theoretical methods used are shown to be complementary for describing the charge transfer reaction. A fit of the cross section, valid for collision energies from 10 eV/u up to 10 MeV/u is presented based on these results.
doi:10.1088/0953-4075/47/13/135204 fatcat:2dr3sprnvjc5jezpl5ydfij4ki