DISTORTED-WAVE AND COUPLED-CHANNEL APPROACHES TO THE EXCITATION OF ATOMIC-HYDROGEN BY PROTON IMPACT

被引:13
作者
BRANSDEN, BH [1 ]
DEWANGAN, DP [1 ]
NOBLE, CJ [1 ]
机构
[1] PHYS RES LAB,AHMEDABAD 380009,INDIA
关键词
D O I
10.1088/0022-3700/12/21/013
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Single-centre coupled-channel models based on sufficiently large pseudo-state expansions are expected to describe the proton-hydrogen system accurately above those energies for which charge exchange is large. Neither the first-order, nor the second-order, distorted-wave approximations to such a model can provide total cross sections which are an improvement on those of the first Born approximation in the energy region from 50 to 200 keV.
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页码:3563 / 3568
页数:6
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