摘要
最小Higgs模型(LH模型)中由于镜像轻子和标准模型(SM)轻子之间存在味改变耦合,会对τ+μ-Z(γ)顶角产生单圈贡献,从而使e^+e^-→τ^+μ^-过程的截面增加,这一效应能被实验探测到.利用LH模型研究了e^+e^-→τ^+μ^-过程,在Mathematica 7.0中通过调用High Energy Physics和Loop Tools,经过复杂计算得到其截面σ.通过这类过程探讨LH模型的效应.
The cross section for the process e^＋e^-→τ^＋μ^- is enhanced significantly in the littlest Higgs model（LH model）,by the one-loop contribution which involves the flavor change coupling between the mirror lepton and the standard model（SM） lepton from the vertex angle of τ＋μ-Z（γ）.The process e^＋e^-→τ^＋μ^- within the LH model is investigated.Reasonable numerical result of σ is obtained by using High Energy Physics and Loop Tools in Mathematica 7.0.It can be observed at future e＋e-linear colliders,which is in favor of testing the LH model.
出处
《河北师范大学学报（自然科学版）》
CAS
北大核心
2011年第6期582-585,共4页
Journal of Hebei Normal University：Natural Science
基金
国家自然科学基金(11047002
11047120)
河北省自然科学基金(A2011201118)
关键词
LH模型
味改变
截面
LH model
flavor change
cross section
