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arXiv physics/9907030physics.atom-phphysics.acc-ph
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基态和亚稳态Li ~+离子的双电子双稳态

Dielectronic Recombination of Ground-State and Metastable Li+ Ions

A. A. Saghiri, J. Linkemann, M. Schmitt, D. Schwalm, A. Wolf, T. Bartsch, A. Hoffknecht, A. Mueller, W. G. Graham, A. D. Price, N. R. Badnell, T. W. Gorczyca, J. A. Tanis

摘要:

研究了基态Li+(1s^2)的δ-n = 1共振和亚稳态Li+(1s2s^3S)的δ-n = 0共振的双电子复合。基态谱在53 ~ 64 eV之间有三个显著的跃迁,而亚稳态谱则有许多能量小于3.2 eV的跃迁。R-矩阵,LS耦合计算与测量的复合速率系数得到合理的良好协议。复合率的时间依赖性产生的辐射寿命为52.2 +- 5.0 s的2 ^3S能级的Li+。

英文摘要:

Dielectronic recombination has been investigated for Delta-n = 1 resonances of ground-state Li+(1s^2) and for Delta-n = 0 resonances of metastable Li+(1s2s ^3S). The ground-state spectrum shows three prominent transitions between 53 and 64 eV, while the metastable spectrum exhibits many transitions with energies < 3.2 eV. Reasonably good agreement of R-matrix, LS coupling calculations with the measured recombination rate coefficient is obtained. The time dependence of the recombination rate yields a radiative lifetime of 52.2 +- 5.0 s for the 2 ^3S level of Li+.

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