Eur. Phys. J. D (2017) 71: 23
https://doi.org/10.1140/epjd/e2016-70616-4

Regular Article

Electron momentum spectroscopy of H⁺₂ in the presence of laser radiation^*

¹ Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Moscow Region, Dubna 141980, Russia
² Department of Nuclear Physics and Quantum Theory of Collisions, Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia

^a e-mail: bulychev@theor.jinr.ru

Received: 30 September 2016
Received in final form: 1 December 2016
Published online: 7 February 2017

Abstract

Theoretical analysis of laser-assisted electron impact ionization of a hydrogen molecular ion H⁺₂ at high impact energy and large momentum transfer is carried out. The laser-field effects on the incoming and outgoing electrons are taken into account using the Volkov functions. The field-dressing of the target electron is treated with a quasistatic state approach. Calculations for laser radiation with frequency ω = 1.55 eV and intensity I = 5 × 10¹¹ W/cm² exhibit strong laser influence on the molecular bond oscillation in laser-assisted electron momentum distributions.