摘要
研究了一个 ＳＵ（３）Ｌ× Ｕ（１）ｘ弱电统一模型·要求 Ｍ２Ｚ１－Ｍ２Ｗ／ｃｏｓ２ｗ小于实验值，得到了Ｍ_(ｚ′)的下限．再利用Ｍ_(ｚ′)和Ｍ_ｕ（Ｍ_ｖ）之间的关系得到Ｍｕ（Ｍｖ）的下限．进而考虑了由于Ｚ′交换引起的ＫＬ－Ｋｓ质量差，并获得了更严格的Ｍ_(ｚ′)和Ｍ_ｕ（Ｍ_ｖ）的下限．
We studied an SU(3)L × U(1)X electroweak model. By requiring M2z1 - M2w/ cos2 w to be less than experimental value we abtain a lower bound on Mz' The relation between Mz' and Mu (Mv) then gives a lower bound on Mu (Mv ). We further consider the KL - Ks mass difference due to Z' exchange and obtain stronger lower bounds on Mz' and Mu (Mv )'
出处
《高能物理与核物理》
CSCD
北大核心
2000年第11期985-990,共6页
High Energy Physics and Nuclear Physics
