Complete I 2 relativistic corrections to the pure vibrational non-Born-Oppenheimer energies of HeH+

Monika Stanke, Dariusz Kȩdziera, Sergiy Bubin, Ludwik Adamowicz

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16 Citations (Scopus)

Abstract

We report the implementation of the complete set of the lowest-order relativistic corrections of the order of α2 (where α is the fine structure constant) for calculating vibrational states of diatomic molecular systems within the framework that does not assume the Born-Oppenheimer approximation. To test the accuracy of the approach we have performed calculations for all rotationless vibrational states (also called pure vibrational states or S states) of the HeH+ ion in the ground electronic state. For the lowest transitions, where very precise experimental results are available, an excellent agreement with the experimental values has been achieved.

Original languageEnglish
Article number022506
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume77
Issue number2
DOIs
Publication statusPublished - Feb 25 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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