Type-II see-saw at ${\mu }^{+}$${\mu }^{-}$ collider

Abstract

Doubly-charged Higgs bosons have extensively been searched at the LHC. In this work, we study the sensitivity reach of the doubly-charged scalar ($H^{\pm \pm }$) in muon collider for the well-known Type-II seesaw scenario. First, we perform a cut-based analysis to predict the discovery prospect in the muon collider operating with 3 TeV center of mass energy. In addition to this, we have also performed a multivariate analysis and compare the cut-based result with the result obtained from the multivariate analysis. We find that the cut-based analysis is more significant as compared to the multivariate analysis in the large doubly-charged scalar mass region. We predict that a doubly-charged scalar mass, $M_{H^{\pm \pm }}$, upto 1450 GeV can be probed with $5\sigma$ significance for center of mass $\sqrt{s}=3$ TeV and integrated luminosity $\mathcal{L}=1000{\text{fb}}^{-1}$.

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