Intermediate-coupling calculations for the dielectronic recombination of B-like ions.
Intermediate-coupling calculations for the dielectronic recombination of B-like ions.
复制标题
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
中科院分区:
文献类型:
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作者:
Badnell Nr;Pindzola Ms
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.