Regular Article

Differential cross sections for electron capture in p + H₂ collisions

¹ Faculty of Engineering, University of Miyazaki, Miyazaki 889-2192, Japan
² Hungarian Academy of Sciences Institute for Nuclear Research (ATOMKI), PO Box 51, 4001 Debrecen, Hungary

^a e-mail: igarashi@phys.miyazaki-u.ac.jp

Received: 25 April 2017
Received in final form: 25 July 2017
Published online: 16 November 2017

Abstract

Projectile angular distributions for electron capture in p + H₂ collisions at 25 and 75 keV impact energies, measured by Sharma et al. [Phys. Rev. A 86, 022706 (2012)], are calculated using the CDW-EIS and eikonal approximations. Angular distributions evaluated in the CDW-EIS approximation are in good agreement with the experimental data measured for coherent projectile beams. Incoherent projectile scatterings are also considered by folding the coherent angular distributions over the transverse momentum distribution of the projectile wave-packet. Reasonable agreements with the measurements are obtained only with coherence parameters very different from those reported in the experiments.