摘要
鉴于当前实验研究结果不断地给基本粒子标准模型提出疑难,揭示轻子、夸克存在亚结构的迹象,例如EMC效应预示轻核与重核之间存在差异,p碰撞单举截面分布在横能ET>200 GeV时与QCD计算发生较大偏差,发现了反轻子-夸克共振事例,先后发现了夸克的味变中性流和轻子的味变中性流,轻子的"反常量"等等.这些实验迹象都迫使我们有必要及时对基本粒子标准模型进行一番全面、系统的审视.
In view of the fact that experimental research results continually put some puzzeles to the standard model of elementary particle model and reveal signs of sub-structure in a lepton and a quark, for example, EMC effect means the differences between a light nucleus and a heavy one, the distribution of the inclusive cross-section of pp collision quite deviates from that calculated by QCD when the transverse energy ET 〉 200 GeV , the resonance case of the antilepton-quark is discovered, early or late the neutral current of flavor change of a quark and that of a lepton, and the anomalous quantity of a lepton are discovered, and so on, it is necessary and in time for us to reexamine all-sidedly and systematically the standard model of the elementary particle.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第3期261-264,共4页
Journal of Yunnan University(Natural Sciences Edition)
基金
国家自然科学基金资助项目(40474033)
关键词
基本粒子标准模型
亚夸克
夸克-轻子对称
味变中性流
反常磁矩
standard model of elementary particle
subquark
quack-lepton symmetry
flavor-changing neutral current
anomalous magnetic moment
