A new vibrational level of the H2+ molecular ion

被引：26

作者：

Carbonell, J

Lazauskas, R

Delande, D

Hilico, L

Kiliç, S

机构：

[1] Inst Sci Nucl Grenoble, F-38026 Grenoble, France

[2] Lab Kastler Brossel, F-75252 Paris, France

[3] Univ Evry Val Essonne, F-91025 Evry, France

来源：

EUROPHYSICS LETTERS | 2003年 / 64卷 / 03期

关键词：

D O I：

10.1209/epl/i2003-00176-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new vibrational level of the H-2(+) molecular ion with binding energy of 1.09 x 10(-9) a.u. approximate to 30 neV 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 v = 1 of the 2psigma(u) electronic state, antisymmetric with respect to the exchange of the two protons, with orbital angular momentum L = 0. It manifests itself as a huge p-H scattering length of a = 750 +/- 5 Bohr radii.

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页码：316 / 322

页数：7

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