Non-Born-Oppenheimer study of positronic molecular systems

e +LiH

Sergiy Bubin, Ludwik Adamowicz

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

The ground state of e +LiH was discussed to measure non-Born-Oppenheimer (BO) variational approximations using correlated Gaussian functions with preexponential factors. The non-BO energies of HPs, LiH and Li + were also determined to calculate positron detachment energy of e +LiH and dissociation energy corresponding to e +LiH fragmentation into HPs and Li +. The lowest variational upper-bounds to ground state energies were observed for all systems. The e +LiH dissociation energy was found to be 0.036548 hartree and annihilation rates of HPs and e +LiH were also calculated.

Original languageEnglish (US)
Pages (from-to)6051-6055
Number of pages5
JournalThe Journal of Chemical Physics
Volume120
Issue number13
DOIs
StatePublished - Apr 1 2004

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Ground state
Positrons
energy
dissociation
ground state
detachment
positrons
fragmentation
approximation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Non-Born-Oppenheimer study of positronic molecular systems : e +LiH. / Bubin, Sergiy; Adamowicz, Ludwik.

In: The Journal of Chemical Physics, Vol. 120, No. 13, 01.04.2004, p. 6051-6055.

Research output: Contribution to journalArticle

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