P-WAVE RESONANCES IN POSITRON-HYDROGEN SCATTERING

被引：23
|
作者：
HO, YK
机构：
[1] Dept. of Phys. and Astron., Louisiana State Univ., Baton Rouge, LA
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1990年 / 23卷 / 15期
关键词：
D O I：
10.1088/0953-4075/23/15/007
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
P-wave resonances in positron-hydrogen scattering are investigated by using the method of complex-coordinate rotation. Elaborate Hylleraas-type wavefunctions with up to N=1120 terms are used in the present investigation. A resonance below the hydrogen N=2 threshold is found at E=-0.254 112 Ryd with a half width of 1/2 Gamma =8.1*10-6 Ryd. Three resonances below the positronium N=2 threshold are also located. The lowest member is determined to lie at E=-0.148 181 Ryd, with a half width of 1/2 Gamma =0.000 297 Ryd. Error estimates for the resonance parameters are also given.
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页码：L419 / L422
页数：4
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