HIGHER-ORDER CONTRIBUTIONS TO IONIZATION PLUS EXCITATION CROSS-SECTIONS IN HIGH-ENERGY E-+HE AND H++HE SCATTERING

被引：8

作者：

BRUCH, R

BEIGMAN, IL

RAUSCHER, EA

FULLING, S

MCGUIRE, JH

TRABERT, E

HECKMANN, PH

机构：

[1] PN LEBEDEV PHYS INST,MOSCOW 117924,RUSSIA

[2] RUHR UNIV BOCHUM,INST EXPTL PHYS 3,W-4630 BOCHUM,GERMANY

[3] TULANE UNIV,DEPT PHYS,NEW ORLEANS,LA 70118

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1993年 / 26卷 / 14期

关键词：

D O I：

10.1088/0953-4075/26/14/006

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have determined absolute cross sections for ionization-excitation of He by energetic electron and proton projectiles. Using a semi-empirical analytic formula we- have been able to decompose our He+ (np) cross section data in leading order terms which are proportional to Z(p)n for n = 2, 3 and 4. In particular we have found a strong Z(p)3 dependence which appears to represent quantum interference effects. The set of amplitude coefficients obtained here is universal for both our electron and proton cross section results from He+ (np) state with principal quantum numbers n = 2 to 5.

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收藏

页码：L413 / L417

页数：5

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