Accurate asymptotic ground state potential curves of Cs$\mathsf{_2}$ from two-colour photoassociation

Accurate asymptotic ground state potential curves of Cs$\mathsf{_2}$ from two-colour photoassociation
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DOI：
10.1140/epjd/e2004-00001-y
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发表时间：
2004-03
期刊：
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics
影响因子：
--
通讯作者：
N. Vanhaecke;C. Lisdat;B. T'Jampens;D. Comparat;A. Crubellier;P. Pillet
N. Vanhaecke;C. Lisdat;B. T'Jampens;D. Comparat;A. Crubellier;P. Pillet
中科院分区：
其他
文献类型：
--
作者：
N. Vanhaecke;C. Lisdat;B. T'Jampens;D. Comparat;A. Crubellier;P. Pillet

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本文用类图双色光缔合光谱法测定了Cs_2中100多个最低电子态的高激发能。结果进行了分析与耦合通道模型使用渐近方法，基于节点线。根据这一分析，我们确定了长程色散系数C6为6846.215.6 a.u.。我们还获得了第一个实验测定的振幅的渐近交换项。
Over 100 high lying level energies of the lowest electronic statesandin Cs2are determined in a-like scheme two-colour photoassociation spectroscopy. The results are analyzed with a coupled channel model using an asymptotic approach, based on nodal lines. From this analysis we determine the long range dispersion coefficient C6to 6846.215.6 a.u. We also obtain the first experimental determination of the amplitude of the asymptotic exchange term.