HTM模型中带电希格斯玻色子在ILC上的联合产生

Associated Production of the Higgs Bosons in the Higgs Triplet Model at the High-Energy Photon Linear Collider

希格斯三重态模型(HTM)预言了类标准模型的中性希格斯玻色子h,还预言了单电荷和双电荷希格斯玻色子(H~±,H^(±±))的存在.主要研究了在高能光子对撞机上的两个三体产生过程:γγ→hH^+H^-和γγ→hH^(++)H^(--).计算结果表明,在合理的参数空间内,两种过程的产生截面分别达到几十fb和一百多fb,分析了主要的标准模型背景并计算了信噪比.由于较低的标准模型背景,在未来的高能直线对撞机上实验中可以通过这些过程探测到带电标量粒子H~±和H^(±±)的信号.

Besides the SM-like Higgs boson h,the Higgs triplet model（HTM）predicts the existence of charged and doubly charged Higgs bosons（H±,H（±±））.In this paper,we focus on the study of triple Higgs production in collisions at the high-energy linear collider：γγ→hH＋H- and γγ→hH（＋＋）H（--）.The numerical results show that,with reasonable parameter values of the cross-sections for two processes can reach the level of several tens of fb and hundreds of fb,respectively.Due to the small SM background,the possible signals of H±and H（±±）might be detected via these processes in the future high-energy linear-collider experiments.