ABSOLUTE ELASTIC DIFFERENTIAL CROSS-SECTIONS OF ELECTRONS SCATTERED BY 3 P-2(3/2) SODIUM

被引：26

作者：

ZUO, M ^{[1
]}

JIANG, TY ^{[1
]}

VUSKOVIC, L ^{[1
]}

BEDERSON, B ^{[1
]}

机构：

[1] NYU, DEPT PHYS, NEW YORK, NY 10003 USA

来源：

PHYSICAL REVIEW A | 1990年 / 41卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.41.2489

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a procedure to obtain absolute differential cross sections for electron scattering by excited atoms. Specifically we report on electron scattering by ground-state and laser-excited 3 P3/22, F=3 sodium using an electron and photon double-recoil technique. Measured differential cross sections are obtained with 3-eV electrons in the angular range from 25°to 40°. Agreement of the ground-state scattering data with a four-state exchange close-coupling calculation [D. L. Moores and D. W. Norcross, J. Phys. B 5, 1482 (1972)] is to within experimental error. Cross sections for excited-state atoms are four to ten times larger than those for ground-state atoms. There are at present no theoretical data for comparison. © 1990 The American Physical Society.

引用

页码：2489 / 2499

页数：11

共 30 条

[1] COLLISIONAL ALIGNMENT AND ORIENTATION OF ATOMIC OUTER SHELLS .1. DIRECT EXCITATION BY ELECTRON AND ATOM IMPACT [J].