Radiative charge transfer in Ne2+ + He collisions

Radiative charge transfer in Ne2+ + He collisions
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Ne2 He 碰撞中的辐射电荷转移

DOI:
10.1088/0953-4075/39/24/012
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发表时间:
2006-11
期刊:
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子:
--
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其他
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用光学势和半经典方法研究了基态和亚稳态Ne ~(2+)离子与中性氦碰撞中的辐射电荷转移。横截面的相对碰撞能量在0.1毫电子伏和10千电子伏之间。对于所有的跃迁,在低能区的截面显示丰富的共振结构。从计算的截面,速率系数得到的温度范围为10和20 × 106 K,并发现与现有的实验数据相一致。采用多参考单激发和双激发组态相互作用(MRD-CI)方法计算了相应的绝热分子势和偶极跃迁矩阵元。
The optical potential and semiclassical methods have been applied to the studies of radiative charge transfer in collisions of ground-state and metastable Ne2+ ions with neutral helium. Cross sections are presented with relative collision energies between 0.1 meV and 10 keV. For all transitions concerned, the cross sections display rich resonance structures in the low-energy region. From the calculated cross sections, rate coefficients are obtained with temperatures between 10 and 20 × 106 K and are found to be in agreement with available experimental data. The multireference single- and double-excitation configuration-interaction (MRD-CI) method was used to obtain the relevant adiabatic molecular potentials and dipole transition matrix elements.
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影响因子: --
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