Collisional quenching of H(3l) atoms by molecular hydrogen

被引：11

作者：

Lauer, S ^{[1
]}

Liebel, H

Vollweiler, F

Wilhelmi, O

Kneip, R

Flemming, E

Schmoranzer, H

Glass-Maujean, M

机构：

[1] Univ Kaiserslautern, Fachbereich Phys, D-67653 Kaiserslautern, Germany

[2] Univ Paris 06, Lab Dynam Ions Atomes & Mol, F-75252 Paris, France

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1998年 / 31卷 / 13期

关键词：

D O I：

10.1088/0953-4075/31/13/021

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The de-excitation cross sections of H(3l) atoms colliding with molecular hydrogen (T = 300 K) were determined in the velocity range of 2-7 km s(-1). At a mean velocity of 5 km s(-1) the de-excitation cross sections are sigma(3s) = 170 +/- 7 Angstrom(2), sigma(3d) = 129 +/- 7 Angstrom(2) and sigma(3p) = 270 +/- 45 Angstrom(2). The velocity dependence of the de-excitation cross sections observed in the experiment agrees with the H-2 quadrupole-H dipole interaction and with the quantum character of the molecular rotation.

引用

页码：3049 / 3056

页数：8

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