摘要
采用微扰计算方法,探讨了轴子探测实验中两类耦合常数间的关联.低阶微扰计算结果表明:轴子的电磁衰变振幅与轴子和光子相互作用的耦合常数有关,由此得到了轴子-光子相互作用的耦合常数与轴子-核子耦合常数之间的关系式.此关系式可用于两类轴子探测实验结果的之间的相互比较和转换.
By utilizing the perturbation computing method, we deduced the relationship between the two types of the coupling constants in the search for the axion experiments. The result of the perturbation eomputing in the leading order shows that the amplitude of the electromagnetic decay of the axion is related to the coupling constant of the axion-photon interactions. The formula of the relationship between the coupling constant of the axionphoton interactions and the coupling constant of the axion-nucleus interactions is given. We ean use this formula to compare the results of the two types experiments as well as to transform them from each other.
出处
《中南民族大学学报(自然科学版)》
CAS
2008年第2期60-62,共3页
Journal of South-Central University for Nationalities:Natural Science Edition
基金
国家自然科学基金资助项目(50646037)
关键词
轴子
光子
冷暗物质
汤川耦合
费曼图
axion
photon
cold dark matter, Yukawa coupling
Feynman diagram