Abstract
We explore the discovery potential of Higgs pair production at a 100 TeV 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 mT2 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 Δm, 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 TeV collider and investigate the changes in the sensitivity, and we find that lepton isolation and the minimal lepton Pt cut are crucial in order to reduce the integrated luminosity.
Highlights
The discovery of Higgs boson at the LHC has motivated the high energy community to think of the generation p p colliders
We examine the discovery potential of the full leptonic final state of the Higgs pair production at a 100 TeV collider
Based on our provious analysis gg → hh → 3l2jE/, we explore the correlation between the experimental bounds on the Yukawa couplings a and b and the bounds on λ3 at both the LHC and a 100 TeV collider
Summary
The discovery of Higgs boson at the LHC has motivated the high energy community to think of the generation p p colliders. The study on the di-Higgs boson final states in the SM and new physics models at hadronic colliders has been being a hot topic recently, various production processes and final states have been explored in literatures, bbγγ [31, 36], W W bb [37], W W γγ [38], bbτ τ [36], and rare decay final states 3 2j [39] and others [40] Both ATLAS and CMS collaborations of the LHC had performed realistic simulation and analysis on di-Higgs boson final states [41, 42]. We provide an appendix to describe the quasi-Monte Carlo method implemented in our code ”wat” which has been used in the work to evaluate cross section and to generate unweighted signal events
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