正负电子三光子湮灭特性的计算机模拟研究

计算物理 ›› 1995, Vol. 12 ›› Issue (2): 248-254.

正负电子三光子湮灭特性的计算机模拟研究

程锦荣, 周勤, 高永椿, 杨德田, 刘红

安徽大学物理系, 合肥 230039

收稿日期:1993-09-04 出版日期:1995-06-25 发布日期:1995-06-25

COMPUTER SIMULATION STUDY OF THE PROPERTIES OF THREE PHOTON ANNIHILATION OF POSITRONS AND ELECTRONS

Cheng Jinrong, Zhou Qin, Gao Yongchun, Yang Detian, and Liu Hong

Department of Physics, Auhui University, Hefei 230039

Received:1993-09-04 Online:1995-06-25 Published:1995-06-25

摘要/Abstract

摘要： 给出了正负电子三光子湮灭模拟实验中描述三个光子发射角的随机变量α₁、α₂、α₃和描述三个光子能量的随机变量w₁、w₂、w₃的抽样方法.根据该抽样方法所产生的子样,得到了关于α₁、α₂、α₃和w₁、w₂、w₃的边缘分布和联合分布。有关结论与已知的量子电动力学(QED)理论预言及实验数据作了比较.

关键词: 总体, 子样, 期望抽样, 三光子湮灭特性

Abstract: This paper presents a method for sampling six random variables which indicate three emission angles of gamma rays and three gamma rays energies in the simulation test of three photon annihilation of positrons and electrons From the subsamples produced by the sampling mentioned above, frontier distribution and joint distribution about angles and about energies are obtained. Comparing the present results concerned with the known quantum electrodynamics (QED) prediction and experimental data, it is found that the three results are quite in agreement.

Key words: matrix, subsample, expectation sampling, three photon annihilation property

中图分类号:

TN2O1

程锦荣, 周勤, 高永椿, 杨德田, 刘红. 正负电子三光子湮灭特性的计算机模拟研究[J]. 计算物理, 1995, 12(2): 248-254.

Cheng Jinrong, Zhou Qin, Gao Yongchun, Yang Detian, and Liu Hong. COMPUTER SIMULATION STUDY OF THE PROPERTIES OF THREE PHOTON ANNIHILATION OF POSITRONS AND ELECTRONS[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1995, 12(2): 248-254.