Cross sections for the vibrational excitation of the H2 X 1Σ+g(v) levels generated by electron collisional excitation of the higher singlet states

Cross sections for the vibrational excitation of the H2 X 1Σ+g(v) levels generated by electron collisional excitation of the higher singlet states
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由较高单线态的电子碰撞激发产生的 H2 X 1Σ+g(v) 能级振动激发的横截面

DOI:
10.1063/1.349284
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发表时间:
1991
影响因子:
3.2
通讯作者:
J. Hiskes
J. Hiskes
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
J. Hiskes

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对于最初处于15个振动能级中的任一个的H2分子的激发横截面σ(v,v '),对于经由激发的电子单重态谱的所有成员的直接激发,评估v属于基电子态并且被激发到最终振动能级v'。考虑到预离解、自电离和激发电子光谱的辐射衰减,最终得到基态的粒子数分布,X 1 π +g(v ')。对于v=0,在计算截面时,明确考虑了通过B、C、B '和D电子态的跃迁。通过位于D态之上的所有里德堡态的激发的额外贡献将这些横截面增强了约10%。对于v ≥ 0,通过明确考虑B和C态的跃迁来评估截面;较高的单重态激发将这些值提高25%。参考总截面的选择仍然是一个主观的,导致价值的c…
The excitation cross sections, σ(v,v‘), for an H2 molecule initially in any one of the 15 vibrational levels, v belonging to the ground electronic state and excited to a final vibrational level, v‘ are evaluated for direct excitations via all members of the excited electronic singlet spectrum. Account is taken of predissociation, autoionization, and radiative decay of the excited electronic spectrum that leads to a final population distribution for the ground electronic state, X 1Σ+g(v‘). For v=0, account is taken explicitly of transitions via the B, C, B’, and D electronic states in evaluating the cross sections. The additional contribution of excitations via all Rydberg states lying above the D state enhances these cross sections by approximately 10%. For v≳0, cross sections are evaluated taking explicit account of transitions through the B and C states; higher singlet excitations enhance these values by 25%. The choice of the reference total cross sections remains a subjective one, causing the values c...
DOI: --
发表时间: 2019
期刊:
影响因子: --
作者:
Takashi Hiroi;Yuya Morimoto;Reika Kanya;Kaoru Yamanouchi
通讯作者: Kaoru Yamanouchi