A method for selecting three-photon positronium-annihilation events with a multidetector coincidence spectrometer

被引：0
|
作者：
S. K. Andrukhovich
N. Antovich
A. V. Berestov
P. Vukotich
A. A. Gurinovich
O. N. Metelitsa
A. A. Khrushchinskii
机构：
[1] Belarussian Academy of Sciences,Stepanov Institute of Physics
[2] University of Montenegro,Nature
[3] Belarussian State University,Mathematical Department
来源：
Instruments and Experimental Techniques | 2000年 / 43卷
关键词：
Background Event; Compton Scattering; Positron Source; Positronium Decay; Free Positron;
D O I：
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中图分类号：
学科分类号：
摘要：
A method for event selection takes into account all features of orthopositronium-atom annihilation. The spectral and angular distributions of positronium three-photon decay was investigated with the 4π-spectrometer ARGUS. The filtration program for the events corresponding to the three-photon positronium decay was developed, and positronium 3γ-annihilation was simulated by the Monte Carlo method. The measured spectra agree well with the simulation. The technique developed will be used to test the quantum electrodynamics of bound state.
引用
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页码：295 / 299
页数：4
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