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轴子探测实验中的电磁衰变机制与微扰计算
引用本文:李成德,程衍富.轴子探测实验中的电磁衰变机制与微扰计算[J].中南民族大学学报(自然科学版),2007,26(4):38-41.
作者姓名:李成德  程衍富
作者单位:中南民族大学电子信息工程学院 武汉430074
摘    要:在量子场微扰理论的框架内,探讨了轴子探测实验中的轴子电磁衰变机制与衰变振幅.微扰计算结果表明:轴子的电磁衰变振幅与轴子的电磁衰变机制密切相关,由轴子和核子(或夸克)的耦合常数以及核子(或夸克)的质量等因素决定.此结果为进一步研究轴子探测实验中的两类耦合机制之间的关联提供了一种可能的途径.

关 键 词:光子  冷暗物质  Primakoff效应  电磁衰变  费曼图
文章编号:1672-4321(2007)04-0038-03
修稿时间:2007年11月8日

Mechanism and Perturbation Computing of the Electromagnetic Decay of the Axion in the Search for the Axion Experiments
Li Chengde,Cheng Yanfu.Mechanism and Perturbation Computing of the Electromagnetic Decay of the Axion in the Search for the Axion Experiments[J].Journal of South-Central Univ for,2007,26(4):38-41.
Authors:Li Chengde  Cheng Yanfu
Abstract:Based on the framework of the perturbation theory of the quantum field, we have explored the mechanism and the amplitude of the electromagnetic decay of the axion in the search for the axion experiments.The result of the perturbation computing shows that the amplitude of the electromagnetic decay of the axion is related to the coupling constant of the axion-nucleon interactions or axionquark interactions,which is closely related to the mechanism of this decay.The amplitude of this electromagnetic decay is also related to the masses of the nucleons or the quarks.This work provides a possible approach to the further research of the relationship between the two types coupling of axion in the search for the axion experiments.
Keywords:axion  photon  cold dark matter  Primakoff effect  electromagnetic decay  Feynman diagram
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