Discovery potential of Higgs boson pair production through 4l＋E final states at a 100 TeV collider

• Published in: 中国物理C：英文版 2017-02, Vol.41 (2), p.74-94
• Main Author: 赵笑然 李强 李钊 晏启树
• Format: Article
• Language: English
• Subjects: TeV; TE模式; 大型强子对撞机; 状态; 玻色子对; 生产潜力; 积分亮度; 重建方法
• ISSN: 1674-1137; 0254-3052
• DOI: 10.1088/1674-1137/41/2/023105

We explore the discovery potential of Higgs pair production at a 100 Te V collider via full leptonic mode.The same mode can be explored at the LHC when Higgs pair production is enhanced by new physics. We examine two types of fully leptonic final states and propose a partial reconstruction method, which can reconstruct some useful kinematic observables. It is found that the m T2 variable determined by this reconstruction method and the reconstructed visible Higgs mass are crucial to discriminate the signal and background events. It is also noticed that a new variable, denoted as △m, which is defined as the mass difference of two possible combinations, is very useful as a discriminant. To examine the detector effects, we consider seven detector setups for a 100 Te V collider and investigate the changes in the sensitivity, and we find that lepton isolation and the minimal lepton P t cut are crucial in order to reduce the integrated luminosity.