Electron-hydrogen-atom elastic and inelastic scattering with screened Coulomb interaction around the n=2 excitation threshold
Electron-hydrogen-atom elastic and inelastic scattering with screened Coulomb interaction around the n=2 excitation threshold
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电子-氢-原子弹性和非弹性散射,在 n=2 激发阈值附近具有屏蔽库仑相互作用
DOI:
10.1103/physreva.81.032707
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发表时间:
2010-03
影响因子:
2.9
通讯作者:
Janev, R. K.
中科院分区:
文献类型:
--
作者:
Zhang, Song Bin;Wang, Jian Guo;Janev, R. K.
The effects of Coulomb interaction screening on electron-hydrogen-atom elastic and excitation scattering around the n=2 threshold have been investigated by using the R-matrix method with pseudostates. The elastic and excitation collision strengths show dramatic changes when the interaction screening length D varies from {infinity} to 3.8 a.u., as a result of the convergence of {sup 1,3}S Feshbach resonances to the varying 2s threshold and of the transformation of {sup 1,3}P and {sup 1}D Feshbach resonances into shape-type resonances when they pass across the 2s and 2p threshold at certain critical value of D, respectively [S. B. Zhang et al., Phys. Rev. Lett. 104, 023203 (2010)]. The resonance parameters for a large number of D in the range D={infinity}-3.8 a.u. are presented. It is observed that the {sup 1,3}P and {sup 1}D resonance contributions to the elastic and excitation collision strengths decrease rapidly with decreasing D after the resonance passes the critical D value. The contribution of a {sup 1}S{sup e} Feshbach resonance to the elastic or excitation collision strength changes into a cusp after the resonance merges into its parent 2s state and immerses into the background with the further decrease of D.
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DOI:
10.1088/0953-4075/33/16/308
发表时间:
2000-08
期刊:
Journal of Physics B
影响因子:
--
作者:
K. Dunseath;M. Terao-Dunseath;J. Launay
通讯作者:
K. Dunseath;M. Terao-Dunseath;J. Launay
影响因子:
2.9
作者:
Ming-Keh Chen;C. Lin;Jian-Zhi Tang
通讯作者:
Ming-Keh Chen;C. Lin;Jian-Zhi Tang
DOI:
10.1088/0953-4075/31/24/005
发表时间:
1998-12
期刊:
Journal of Physics B
影响因子:
--
作者:
T. T. Gien-T.
通讯作者:
T. T. Gien-T.
DOI:
10.1063/1.871440
发表时间:
1993
期刊:
--
影响因子:
--
作者:
Young-Dae Jung
通讯作者:
Young-Dae Jung
DOI:
10.1088/0370-1328/88/3/302
发表时间:
1966-07
期刊:
--
影响因子:
--
作者:
P. Burke;A. Taylor
通讯作者:
P. Burke;A. Taylor