English

Potential Energy Curves and Generalized Oscillator Strength for Doubly Excited States of Hydrogen Molecule

Atomic Physics 2015-09-02 v1

Abstract

In this paper we report calculations of potential energy curves in the 1.2a.u.R100a.u.1.2 a.u.\le R\le100 a.u. range at Multireference Configuration Interaction (MRCI) level for doubly excited states of the H2_2 molecule. We have focused on the Q2Q_2 states which lie between the second and third ionization thresholds of H2+_2^+ molecular ion, i.e., 2Σu+^2\Sigma_u^+ state in which lie the H(2l) + H(2l') dissociation channels. The MRCI approach allowed us to successfully identify for the first time the molecular state which dissociates into hydrogen atoms at 2s state. Further, Generalized Oscillator Strength as a function of transferred momentum for three doubly excited states is also presented. (Some figures in this article are in colour only in the electronic version)

Keywords

Cite

@article{arxiv.1503.08679,
  title  = {Potential Energy Curves and Generalized Oscillator Strength for Doubly Excited States of Hydrogen Molecule},
  author = {Leonardo O. Santos and Alexandre B. Rocha and Rodrigo F. Nascimento and Nelson V. de Castro Faria and Ginette Jalbert},
  journal= {arXiv preprint arXiv:1503.08679},
  year   = {2015}
}