Convergence of experiment and theory on the pure vibrational spectrum of HeH+

Monika Stanke, Dariusz Kȩdziera, Marcin Molski, Sergiy Bubin, Maria Barysz, Ludwik Adamowicz

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Abstract

Very accurate quantum mechanical calculations of the pure vibrational spectrum of the HeH+ molecular ion are reported and compared with newly obtained pure vibrational transitions extracted from the available experimental data. The calculations are performed without assuming the Born-Oppenheimer approximation regarding separability of the nuclear and electronic motions and include the first order relativistic mass-velocity and Darwin corrections. For the two lowest transitions, whose experimental energies are established with the highest precision, the calculated and the experimental results show very good agreement.

Original languageEnglish (US)
Article number233002
JournalPhysical Review Letters
Volume96
Issue number23
DOIs
StatePublished - 2006

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vibrational spectra
Born-Oppenheimer approximation
molecular ions
electronics
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Convergence of experiment and theory on the pure vibrational spectrum of HeH+. / Stanke, Monika; Kȩdziera, Dariusz; Molski, Marcin; Bubin, Sergiy; Barysz, Maria; Adamowicz, Ludwik.

In: Physical Review Letters, Vol. 96, No. 23, 233002, 2006.

Research output: Contribution to journalArticle

Stanke, Monika ; Kȩdziera, Dariusz ; Molski, Marcin ; Bubin, Sergiy ; Barysz, Maria ; Adamowicz, Ludwik. / Convergence of experiment and theory on the pure vibrational spectrum of HeH+. In: Physical Review Letters. 2006 ; Vol. 96, No. 23.
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