HIDDEN CROSSING THEORY OF THRESHOLD IONIZATION OF ATOMS BY ELECTRON-IMPACT

被引：40

作者：

MACEK, JH

OVCHINNIKOV, SY

PASOVETS, SV

机构：

[1] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831

[2] AF IOFFE PHYS TECH INST,ST PETERSBURG,RUSSIA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.74.4631

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The hidden crossing theory, familiar in the context of ion-atom collisions, is adapted to the computation of ionization cross sections and spin asymmetries for electron impact on atomic hydrogen. Computed ionization cross sections and spin asymmetry agree within 10% with measurements. A rapid variation of the spin asymmetry near threshold is found, and its origin is traced to anharmonic corrections to the Wannier threshold law for triplet spin states. © 1995 The American Physical Society.

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页码：4631 / 4634

页数：4

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