RESONANT DIFFERENTIAL SCATTERING OF ELECTRONS BY HELIUM

被引：41

作者：

GIBSON, JR

DOLDER, KT

机构：

来源：

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS | 1969年 / 2卷 / 07期

关键词：

D O I：

10.1088/0022-3700/2/7/302

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The resonant differential scattering of electrons by helium has been investigated for energies close to 19·3 ev. A data-logging technique was used to obtain exceptionally high signal-to-noise ratios. Analysis of the results gave δ0 similar,equals 111°, δ1 similar,equals 17°and δ2 similar,equals 3°for the first three phase shifts for potential scattering at the resonance energy, and 8 mev for the natural width at half-height. Structure was observed at 19·45 ± 0·05 ev which had the properties of a p-wave resonance with a natural width of order 0·25 mev.

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页码：741 / &

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