Issue |
Europhys. Lett.
Volume 64, Number 3, November 2003
|
|
---|---|---|
Page(s) | 316 - 322 | |
Section | Atomic and molecular physics | |
DOI | https://doi.org/10.1209/epl/i2003-00176-1 | |
Published online | 01 November 2003 |
A new vibrational level of the
molecular ion
1
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
Received:
24
July
2003
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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