Volume 64, Number 3, November 2003
|Page(s)||316 - 322|
|Section||Atomic and molecular physics|
|Published online||01 November 2003|
A new vibrational level of the molecular ion
Institut des Sciences Nucléaires - 53 Av. des Martyrs, 38026 Grenoble, France
2 Laboratoire Kastler Brossel - Case 74, 4 place Jussieu, 75252 Paris, France
3 Université d'Evry Val d'Essonne - Boulevard F. Mitterrand, 91025 Evry cedex, France
Accepted: 25 August 2003
A new vibrational level of the molecular ion with binding energy of below the first dissociation limit is predicted, using highly accurate numerical non-relativistic quantum calculations, which go beyond the Born-Oppenheimer approximation. It is the first-excited vibrational level of the electronic state, antisymmetric with respect to the exchange of the two protons, with orbital angular momentum . It manifests itself as a huge - scattering length of Bohr radii.
PACS: 31.15.-p – Calculations and mathematical techniques in atomic and molecular physics (excluding electron correlation calculations) / 03.65.Nk – Scattering theory / 03.65.Ge – Solutions of wave equations: bound states
© EDP Sciences, 2003
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