Contribution of the LHT Model to Zcc Coupling  

作　　者：WANG Ya-Bin LI Xiang-Dong HAN Jin-Zhong YANG Bing-Fang 王亚彬;李向东;韩金钟;杨炳方(College of Physics&Information Engineering,Henan Normal University,Xinxiang 453007;Academic Affair Office,Jiaozuo University,Jiaozuo 454000;Basic Teaching Department,Jiaozuo University,Jiaozuo 454000)

机构地区：[1]College of Physics&Information Engineering,Henan Normal University,Xinxiang 453007 [2]Academic Affair Office,Jiaozuo University,Jiaozuo 454000 [3]Basic Teaching Department,Jiaozuo University,Jiaozuo 454000

出　　处：《Chinese Physics Letters》2011年第10期58-61,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.10775039 and 11075045;the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant No.20094104110001;the HASTIT under Grant No.2009HASTIT004.

摘　　要：In the littlest Higgs model with T-parity(LHT),some new particles,such as the T-odd mirror quarks and goldstone bosons,can contribute to various observables.We calculate their contribution to Zcc coupling.Some observables are related to Zcc coupling,for example,the effective vector and axial−vector Zcc coupling constants(gVc,gAc)and c−quark forward-backward asymmetry(AcFB).We give our predictions about gVc,gAc in the LHT model and show the allowed regions of the mirror quark masses based on the experimental data of gVc−gAc.Then,we present an explanation of AcFB.

关 键 词：COUPLING QUARK MIRROR 

分 类 号：O57[理学—粒子物理与原子核物理]