精确计算电子重整化链图传播下的Compton散射微分截面  

Accurate calculation of the differential cross-section of compton scattering with electron renormalized chain propagator contribution

作　　者：汪先友[1] 陈文锁[2] 方祯云[1] 彭庆军[1] 王凯俊[1] 

机构地区：[1]重庆大学理论物理研究所,重庆400030 [2]电子科技大学电子薄膜与集成器件国家重点实验室,成都610054

出　　处：《原子与分子物理学报》2008年第2期335-343,共9页Journal of Atomic and Molecular Physics

基　　金：973计划项目(2003CB71603);国家自然科学基金(10575140);重庆市自然科学基金(8562)

摘　　要：采用电子与光子电磁相互作用最小耦合模型,对电子重整化链图传播下Compton散射微分截面作了严格解析计算,获得精确理论结果;并将该计算结果与电子树图和重整化单圈图传播下Compton散射微分截面作对比分析,获得了有关辐射修正的重要信息.此研究结果对精确描述Compton散射现象以及对电磁相互作用所呈现的复杂内部过程的深入探讨,都将从一个重要研究侧面给出理论计算研究方面某些可供借鉴与参考之处.In the minimal coupling model of the electron and photon electromagnetic interaction,we have a precise calculation on the differential cross section of Compton scattering with electron renormalized chain propagator,and obtain the accurate result.Through comparing the result of the differential cross section of Compton scattering with electron renormalized propagator of the electron tree diagram and single loop diagram,we also obtain some important information about radiative correction.This research will not only provide some nice reference to the exact description about Compton scattering phenomenon and the further research of internal complex process of the electromagnetic interaction,but also give some inspiration to the theoretical computation from another significant research entry.

关 键 词：COMPTON散射 微分散射截面 重整化链图传播子 最小电磁耦合模型 

分 类 号：O412.3[理学—理论物理] O413.3[理学—物理]