SPIN-TAGGED ELECTRON-HYDROGEN SCATTERING - IONIZATION IN THE NEAR-THRESHOLD REGION

被引：27

作者：

GUO, XQ

CROWE, DM

LUBELL, MS

TANG, FC

VASILAKIS, A

SLEVIN, J

EMINYAN, M

机构：

[1] UNIV PARIS 07,PHYS ATOM LAB,F-75251 PARIS,FRANCE

[2] ST PATRICKS COLL,DEPT EXPTL PHYS,MAYNOOTH,KILDARE,IRELAND

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.65.1857

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use beams of polarized electrons and polarized hydrogen atoms to measure the ionization-rate asymmetry, I=[R()-R()]/[R()+R()], in the near-threshold region, where R() and R() are the ionization rates when the electron spin is antiparallel and parallel, respectively, to the atomic spins. Within 1.7 eV above threshold, our results reveal the presence of structure, which heretofore has not been predicted by any conventional theoretical calculation. © 1990 The American Physical Society.

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页码：1857 / 1860

页数：4

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