Single- and double-electron capture processes in low-energy collisions of N3+ with He
Single- and double-electron capture processes in low-energy collisions of N3+ with He
复制标题
N3 与 He 低能碰撞中的单电子和双电子捕获过程
DOI：
10.1103/physreva.84.042706
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发表时间：
2011-10
影响因子：
2.9
通讯作者：
Buenker, R. J.
中科院分区：
文献类型：
--
作者：
Liu, X. J.;Wang, J. G.;Qu, Y. Z.;Buenker, R. J.
Single-electron capture (SEC) and double-electron capture (DEC) processes in collisions of ground state N{sup 3+} (2s{sup 2} {sup 1}S) ions with He are investigated by using the quantum-mechanical molecular-orbital close-coupling (QMOCC) method. The ab initio adiabatic potentials, radial and rotational coupling matrices utilized in QMOCC calculations, are obtained from the multireference single- and double-excitation configuration interaction approach. Total and state-selective SEC and DEC cross sections are presented in the low-energy range from 0.1 eV to 15 keV (i.e., 0.007 eV/u -1.07 keV/u) and rate coefficients in the temperature range from 10{sup 4} to 10{sup 7} K. Our results indicate that the SEC dominates the charge-transfer process in the considered energy region of this collision system and the SEC cross sections are nearly constant in the relatively high-collision energy region, while the DEC cross sections are about 2 orders of magnitude smaller. It is found that, for the SEC processes, in the dominant mechanisms, electrons are captured to exoergic channels N{sup 2+} (2s2p{sup 2} {sup 2}D,{sup 2}S), and for the DEC processes, they are captured to N{sup +} (2s{sup 2}2p{sup 2} {sup 1}D,{sup 1}S). Our calculations also reveal that rotational couplings become important at E > 10 eV/u for SEC andmore » E > 200 eV/u for DEC processes.« less
Single-electron capture (SEC) and double-electron capture (DEC) processes in collisions of ground state N{sup 3+} (2s{sup 2} {sup 1}S) ions with He are investigated by using the quantum-mechanical molecular-orbital close-coupling (QMOCC) method. The ab initio adiabatic potentials, radial and rotational coupling matrices utilized in QMOCC calculations, are obtained from the multireference single- and double-excitation configuration interaction approach. Total and state-selective SEC and DEC cross sections are presented in the low-energy range from 0.1 eV to 15 keV (i.e., 0.007 eV/u -1.07 keV/u) and rate coefficients in the temperature range from 10{sup 4} to 10{sup 7} K. Our results indicate that the SEC dominates the charge-transfer process in the considered energy region of this collision system and the SEC cross sections are nearly constant in the relatively high-collision energy region, while the DEC cross sections are about 2 orders of magnitude smaller. It is found that, for the SEC processes, in the dominant mechanisms, electrons are captured to exoergic channels N{sup 2+} (2s2p{sup 2} {sup 2}D,{sup 2}S), and for the DEC processes, they are captured to N{sup +} (2s{sup 2}2p{sup 2} {sup 1}D,{sup 1}S). Our calculations also reveal that rotational couplings become important at E > 10 eV/u for SEC andmore » E > 200 eV/u for DEC processes.« less
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DOI：
10.1103/physreva.36.1656
发表时间：
1987-08
期刊：
Physical review. A, General physics
影响因子：
--
作者：
Saha;Datta;Mukherjee
通讯作者：
Saha;Datta;Mukherjee
DOI：
10.1007/bf00555301
发表时间：
1975-01-01
期刊：
THEORETICA CHIMICA ACTA
影响因子：
--
作者：
BUENKER, RJ;PEYERIMHOFF, SD
通讯作者：
PEYERIMHOFF, SD
影响因子：
--
作者：
M. Kimura;N. F. Lane
通讯作者：
M. Kimura;N. F. Lane
DOI：
10.1088/0953-4075/27/16/010
发表时间：
1994-08
期刊：
Journal of Physics B
影响因子：
--
作者：
L. Errea;C. Harel;H. Jouini;L. Méndez;B. Pons;A. Riera
通讯作者：
L. Errea;C. Harel;H. Jouini;L. Méndez;B. Pons;A. Riera
影响因子：
2.2
作者：
R. Janev;T. Kato;J. G. Wang
通讯作者：
R. Janev;T. Kato;J. G. Wang