Intermediate-coupling calculations for the dielectronic recombination of B-like ions.

Intermediate-coupling calculations for the dielectronic recombination of B-like ions.
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B 类离子双电子复合的中间耦合计算。

DOI:
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发表时间:
1989
期刊:
影响因子:
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通讯作者:
Pindzola Ms
Pindzola Ms
中科院分区:
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文献类型:
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作者:
Badnell Nr;Pindzola Ms

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我们计算过...三角洲使用程序Au-smcapst-smcapso-smcapsSt-smcapsr-smcapsu-smcapsc-smcapst-smcapsu-smcapsr-smcapsE以及分区配置平均近似(PCA),在LS耦合和中间耦合近似中计算类B离子C/sup +/、N/sup 2+/、O/sup 3+/和F/sup 4+/的n = 0双电子复合截面和速率系数。零场PCA结果与LS耦合和中间耦合结果之间存在广泛的一致性,差异不超过10%。由Dittner等人获得的实验截面位于零场和最大场增强PCA结果之间,增强因子为3。在速率系数的情况下,伯吉斯的一般公式被发现高估了零场的结果之间的1.3和1.8的一个因素,主要是由于忽略了自电离成激发态。
We have calculated ..delta..n = 0 dielectronic recombination cross sections and rate coefficients for the B-like ions C/sup +/, N/sup 2+/, O/sup 3+/, and F/sup 4+/ in the LS-coupling and intermediate-coupling approximations, using the program Au-smcapst-smcapso-smcapsSt-smcapsr-smcapsu-smcapsc-smcapst-smcapsu-smcapsr-smcapsE, as well as in a partitioned configuration-average approximation (PCA). There is broad agreement between the zero-field PCA results and the LS-coupling and intermediate-coupling results, which differ by no more than 10%. The experimental cross sections obtained by Dittner et al. lie between the zero-field and the maximum-field-enhanced PCA results, the enhancement being a factor of 3. In the case of the rate coefficients the general formula of Burgess was found to overestimate the zero-field results by a factor of between 1.3 and 1.8, mainly due to the neglect of autoionization into excited states.