核子-反核子混合圈链图传播下核子-介子反应截面重整化链图效应word格式论文.docxVIP

that in lower energy region, the correction is appropriately in tiny value. At last, this thesis made a numeric analysis and comparisons among differential cross sections of tree-level, loop diagram and chain diagram, and gave a graph based on computer plotting. We get a conclusion that it is accurate to describe strong interaction with quantum field perturbation theory in middle-low energy area.This study would offer certain academic references to the further research on SU(2) invariant coupling model and the nuclear physics in terms of theoretical calculations. In addition, it will also provide something valuable to refer on relevant physical process, and on the renormalization calculation orderly with different approaches in perturbation theory of QFT.Keywords： SU(2) invariant coupling, Differential cross section, Renormalization, Great momentum limit, Radiative correction .目录中文摘要..........................................................................................................................................I英文摘要........................................................................................................................................ II1 绪论......................................................................................................................................... 11.1 问题的提出 ........................................................................................................................... 11.1.1 核物理中的 ??介子 .................................................................................................... 11.1.2 ??-核相互作用........................................................................................................... 21.2 国内外研究现状 ................................................................................................................... 31.2.1 现有的理论模型 ........................................................................................................ 31.2.2 ??-核相互作用的研究进展.........................