N-圈重整化传播子的精确计算与辐射修正  

Accurate Calculation Result of the Renormalized Finite Quantity Function of N- Loop Propagator and the Discussion of the Radiation Correction

作　　者：张忠灿[1] 徐进[1] 方祯云[1] 高飞[1] 蒋再富[1] 蒋敏[1] 

机构地区：[1]重庆大学数理学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2007年第3期95-100,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(10175096);973计划资助项目(2003CB71630);重庆市自然科学基金重点项目(8562)

摘　　要：对N-圈传播子重整化有限量函数∑c(p)或∏c(p)=G2∑c(p)的“精确计算”问题,作了深入探讨与研究,并在原有研究基础上,对∑c(p)有效计算式的计算问题与计算途径作了全面分析与考察,寻求出简捷与可行的理论计算方案,并对此完成严格解析计算及极限ε→0处理,获得了∑c(p)精确计算结果.同时,还对N-圈重整化传播子的辐射修正问题作了物理分析与讨论.The authors further research and study the question about accurately calculating the renormalized finite quantity function of N-N^- loo Ppropagator∑c（p）（or∏c（p）=G^2∑c（p））. Based on the former work, they roundly analyze the concrete calculation questions and means to the effective one-dimension calculating expression integral which can strictly calculate∑c（p）, seek a terse and feasible scheme in the theoretical calculation, finish strictly analytic calculation and limit （ε→0） treatment, and obtain the finally accurate calculation result of the renormalized finite quantity function ∑c（p）. At the last, they analyze the radiation correction about the renormalized finite quantity function of N-N^- loop propagator and make relevant discussion.

关 键 词：N-N^-圈传播子 复变函数积分法 辐射修正 重整化有限量函数 

分 类 号：O365[理学—流体力学] O230[理学—力学]