标题： 双电荷标量在电子对撞机中的最小希格斯模型 显示英文标题

标题： Double charged scalars of littlest higgs model in ee colliders

摘要： 小希格斯模型由于标准模型的扩展对称群，在其粒子内容中包含重标量。在小希格斯模型中的最小小希格斯模型中存在一个新的重标量三重态。该三重态的物理状态包含一个双电荷标量、一个单电荷标量以及一个中性标量和一个中性赝标量。在小希格斯模型中，也可以在Yukawa拉格朗日量中实现一种马约拉纳型质量项，导致轻子味违反。在本次报告中，介绍了在$e^+e^-$对撞机的小最小小希格斯模型中双电荷标量的对产生情况。同时，将根据轻子味违反参数分析双电荷标量的最终信号。最后将说明，如果存在轻子味违反，在$e^+e^-$对撞机中可以无需任何标准模型背景观察到双电荷标量，其对撞机信号为四个轻子，否则如果没有轻子味违反，它们可以通过背景分析进行重建。 显示英文摘要

摘要： Little Higgs models contain heavy scalars in their content of particles as a result of extended symmetry group of SM. In the littlest Higgs model of little Higgs models there exists a new heavy scalar triplet.The physical states of this triplet contains a double charged scalar, a single charged scalar, as well as a neutral scalar and a neutral pseudo scalar. In little Higgs models a Majorana type mass term can also be implemented in Yukawa Lagrangian, resulting lepton flavor violation. In this talk the pair productions of double charged scalars in the context of littlest Higgs model in $e^+e^-$ colliders are presented. Also the final signatures of double charged scalars will be analyzed depending on lepton flavor violation parameters. Finally it will be presented that if there is lepton flavor violation, double charged scalars can be observed without any SM background in $e^+e^-$ colliders with a collider signal of four leptons, otherwise if there is no lepton flavor violation they can be reconstructed with a background analysis.