Search for ${\delta }^{\pm \pm }$ with new decay patterns at the LHC

Abstract

A study of searching for doubly charged Higgs $({\delta }^{\pm \pm })$ is performed in two-Higgs-doublet extension of the conventional type-II seesaw model. We find that a fantastic mixing effect between singly charged Higgs of Higgs doublet and of triplet is arisen from the scalar potential. The mixing leads to following intriguing phenomena: (a) the mass splittings in triplet particles are magnified, (b) QCD processes dominate the production of ${\delta }^{\pm \pm }$, and (c) new predominant decay channels of ${\delta }^{\pm \pm }$ are ${\delta }^{\pm \pm }\to W^{{\pm }^{[\ast ]}}{H}_{1(2)}^{{\pm }^{(\ast )}}$, but not ${\delta }^{\pm }\to ({\ell }^{\pm }{\ell }^{\pm },W^{\pm }{W}^{\pm })$ which are usually discussed in the literature. With luminosity of 40 fb${}^{-1}$ and collision energy of 13 TeV, we demonstrate that ${\delta }^{\pm \pm }$ with mass below $330$ GeV could be observed at the $5\sigma$ level. Moreover, when the luminosity approaches to 300 fb${}^{-1}$, the observed mass of ${\delta }^{\pm \pm }$ could reach up to 450 GeV.

arXiv comment21 pages, 12 figures, published version, title is slightly changed

References in corpus (33)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• MadGraph 5 : Going Beyond
• Implications of CTEQ global analysis for collider observables
• Neutrino Masses and Leptogenesis with Heavy Higgs Triplets
• Distinguishing seesaw models at LHC with multi-lepton signals
• Neutrino Masses and the LHC: Testing Type II Seesaw
• The Higgs Potential in the Type II Seesaw Model
• Single and Pair Production of Doubly Charged Higgs Bosons at Hadron Colliders
• Type II Seesaw at LHC: the Roadmap
• Testing Higgs Triplet Model and Neutrino Mass Patterns
• A search for a doubly-charged Higgs boson in pp collisions at sqrt(s) = 7 TeV
• Pair Production of Doubly-Charged Scalars: Neutrino Mass Constraints and Signals at the LHC
• Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets
• Search for doubly-charged Higgs bosons in like-sign dilepton final states at sqrt(s) = 7 TeV with the ATLAS detector
• Higgs boson decay into 2 photons in the type~II Seesaw Model
• Probing Majorana Phases and Neutrino Mass Spectrum in the Higgs Triplet Model at the LHC
• Testing the Higgs triplet model with the mass difference at the LHC
• Search for doubly charged Higgs bosons using the same-sign diboson mode at the LHC
• Production of doubly charged scalars from the decay of singly charged scalars in the Higgs Triplet Model
• First constraint on the mass of doubly-charged Higgs bosons in the same-sign diboson decay scenario at the LHC
• Leptonic signatures of doubly charged Higgs boson production at the LHC
• Mass-degenerate Higgs bosons at 125 GeV in the Two-Higgs-Doublet Model
• Doubly charged Higgs bosons and three-lepton signatures in the Higgs Triplet Model
• Search for a doubly-charged boson in four lepton final states in type II seesaw
• Exploring the Doubly Charged Higgs of the Left-Right Symmetric Model using Vector Boson Fusion-like Events at the LHC
• Discrimination of models including doubly charged scalar bosons by using tau lepton decay distributions
• Measuring the 2HDM Scalar Potential at LHC14
• One-loop decays $A^0\to ZZ,Z\gamma ,\gamma \gamma$ within the 2HDM and its search at the LHC
• Two-Higgs-Doublet Type-II Seesaw Model

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• Distinctive Collider Signals for a Two Higgs Triplet Model
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• Search for a light-charged Higgs in a two-Higgs-doublet type II seesaw model at the LHC
• Signal of doubly charged Higgs at $e^{+}{e}^{-}$ colliders