POSITRON SCATTERING BY ATOMIC-HYDROGEN AT INTERMEDIATE ENERGIES

被引：51

作者：

HIGGINS, K

BURKE, PG

WALTERS, HRJ

机构：

[1] School of Mathematics and Physics, The Queen’s University of Belfast, Belfast

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1990年 / 23卷 / 08期

关键词：

D O I：

10.1088/0953-4075/23/8/011

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Results of an accurate calculation based upon the intermediate energy R-matrix theory are reported for elastic scattering of positrons by atomic hydrogen. T-matrix elements for both low and intermediate energy scattering are evaluated for the Se, Po, Deand Fopartial wave symmetries. The low-energy elastic phaseshifts are found to be in good agreement with previous accurate variational calculations. Using an optical potential approach to include the effect of the higher partial waves, elastic and total cross sections are presented for energies ranging from near threshold to 3.7 Rydbergs. © 1990 IOP Publishing Ltd.

引用

页码：1345 / 1357

页数：13

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