摘要
简要介绍弱混合角的精确测量的重要意义后,讨论了在低能区宇称检验中的暗Z粒子的意义.暗Z粒子是一种非常轻(大致在Me V到Ge V的尺度)的规范玻色子,能够在耦合电磁流的同时耦合弱中性流.
After briefly discussing the importance of the precise measurement of the weak mixing angle,the implication of the dark Z on the low-Q2 parity tests is discussed. The dark Z is a very light( roughly,Me V-Ge V scale) gauge boson,which couples to the electromagnetic current as well as the weak neutral current.
基金
Supported in part by the IBS(IBS-R018-D1)
