原子与分子物理学报
原子與分子物理學報
원자여분자물이학보
CHINESE JOURNAL OF ATOMIC AND MOLECULAR PHYSICS
2012年
5期
851-858
,共8页
Compton散射%微分截面%混合链图传播子%标准模型
Compton散射%微分截麵%混閤鏈圖傳播子%標準模型
Compton산사%미분절면%혼합련도전파자%표준모형
Compton scattering%differential cross section%mixed chain propagator%Standard Model
采用电弱统一标准模型(SM),对由参与电弱相互作用的各种混合圈构成的电子重整化链图传播子的构架方式作了详细分析,并完成了有关解析计算,进而获得了电子重整化链图传播子的解析计算结果.作者又将此结果应用到Compton散射,精确计算了电子混合链图传播下Compton散射微分截面的解析结果dσSM(chain)/dcosθ.此外,作者还将计算结果与最低阶徽分截面dσ(tree)/dcosθ和量子电动力学(QED)中电子链图传播下的Compton散射微分截面dσQED(chain)/dcosθ做了具体的数值计算与对比分析,发现dσSM(chain)/dcosθ比dσQED(chain)/dcosθ能更加精细的反应辐射修正效应.
採用電弱統一標準模型(SM),對由參與電弱相互作用的各種混閤圈構成的電子重整化鏈圖傳播子的構架方式作瞭詳細分析,併完成瞭有關解析計算,進而穫得瞭電子重整化鏈圖傳播子的解析計算結果.作者又將此結果應用到Compton散射,精確計算瞭電子混閤鏈圖傳播下Compton散射微分截麵的解析結果dσSM(chain)/dcosθ.此外,作者還將計算結果與最低階徽分截麵dσ(tree)/dcosθ和量子電動力學(QED)中電子鏈圖傳播下的Compton散射微分截麵dσQED(chain)/dcosθ做瞭具體的數值計算與對比分析,髮現dσSM(chain)/dcosθ比dσQED(chain)/dcosθ能更加精細的反應輻射脩正效應.
채용전약통일표준모형(SM),대유삼여전약상호작용적각충혼합권구성적전자중정화련도전파자적구가방식작료상세분석,병완성료유관해석계산,진이획득료전자중정화련도전파자적해석계산결과.작자우장차결과응용도Compton산사,정학계산료전자혼합련도전파하Compton산사미분절면적해석결과dσSM(chain)/dcosθ.차외,작자환장계산결과여최저계휘분절면dσ(tree)/dcosθ화양자전동역학(QED)중전자련도전파하적Compton산사미분절면dσQED(chain)/dcosθ주료구체적수치계산여대비분석,발현dσSM(chain)/dcosθ비dσQED(chain)/dcosθ능경가정세적반응복사수정효응.
By using the electroweak standard model (SM),we analyzed the framework of electron mixed chain propagator which composed of serious of different physical loops participating in electroweak interaction and completed the relevant analytical calculation.Then,we obtained the analytical result of electron mixed chain propagator.By applying our result to Compton scattering,the differential cross section of Compton scattering dσSM(chain)/acosθis counted accurately.This result is compared with the lowest order differential cross section dσ(tree)/dcosθ and the electronic chain propagator Compton scattering differential cross section uσQED(chain) /acosθ in quantum electrodynamics (QED).It can be seen that dσSM(chain)/dcosθ can show the radiation correction more subtly than dσQED(chain)/dcosθ.
