Eur. Phys. J. D (2014) 68: 266
https://doi.org/10.1140/epjd/e2014-50268-2

Regular Article

Cross sections for dissociative ionization and dissociative excitation of H₂⁺ by single photon absorption

Faculty of Engineering, University of Miyazaki, 889-2192 Miyazaki, Japan

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

Received: 1 April 2014
Received in final form: 31 May 2014
Published online: 25 September 2014

Abstract

The photo-absorption cross sections for the dissociative ionization and dissociative excitation of H₂⁺ are calculated for photon polarization parallel and perpendicular to the internuclear axis. The wavefunctions for the initial and final states are prepared using the Born-Oppenheimer approximation. For dissociative ionization, the cross section and angular distribution of photo-electrons are compared with those calculated with the fixed-nuclei approximation. For dissociative excitation, the cross sections for H (N = 1~4) productions are shown.