π~0与N-重整化链传播子的“精确”收敛公式与辐射修正  

The Accurate Convergent Formula and Radiation Correction of the Renormalized π~0 and N- Chain Propagator

作　　者：张忠灿[1] 王凯俊[1] 易俊梅[1] 蒋再富[1] 徐进[1] 方祯云[1] 

机构地区：[1]重庆大学理论物理研究所,重庆400030

出　　处：《重庆大学学报（自然科学版）》2007年第11期117-124,共8页Journal of Chongqing University

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

摘　　要：采用中性介子π0与核子N-反核子强相互作用Lorentz不变耦合模型,对π0与N-两类重整化链图传播子函数级数收敛性问题作了全面考察与深入研究,并利用链图传播子函数的精确理论计算结果,通过相关理论分析、推导后获得重整化链图传播子函数级数"精确"收敛公式;在此基础上又对两类重整化链图传播子"辐射修正"问题作了理论计算与分析。In the Lorentz invariant coupling model of strong interaction between neutral meson π^0 and nucleon N - antinucleon N^-, we roundly research and carefully study the convergent question about two kinds of the renormalized meson and nucleon-antinucleon chain propagator function progression. Using accurate theoretical calculating result of chain propagator function, we obtain the accurate convergent formula of the renormalized chain propagator after correlated theoretical analyzing and deducing. Moreover, on the basis of this, we comprehensively calculate and concretely analyze these various radiation correction to the two kinds of the renormalized chain propagator, which can be used for reference for further research in the renormalized chain propagators.

关 键 词：重整化有限量函数 单圈传播子 链传播子 序列收敛等效替换 辐射修正 

分 类 号：O365[理学—流体力学] O230[理学—力学]