Revealing the origin of neutrino masses through the Type II Seesaw mechanism at high-energy muon colliders

Abstract

The future muon collider can play as an ideal machine to search for new physics at high energies. In this work, we study the search potential of the heavy Higgs triplet in the Type II Seesaw mechanism at muon colliders with high collision energy and high luminosity. The latest neutrino oscillation data are taken into account for realizing the leptonic decay modes of the charged Higgs bosons $(H^{\pm \pm },H^{\pm })$ in the Type II Seesaw. We show the impact of neutrino mass and mixing parameters on the purely leptonic decays. The pair production of doubly charged Higgs $H^{++}{H}^{--}$ is through direct ${\mu }^{+}{\mu }^{-}$ annihilation and vector boson fusion (VBF) processes at muon collider. The associated production $H^{\pm \pm }{H}^{\mp }$ can only be induced by VBF processes. We simulate both the purely leptonic and bosonic signal channels of charged Higgs bosons in Type II Seesaw, together with the Standard Model backgrounds. We show the required luminosity for the discovery of the charged Higgses and the reachable limits on the leptonic decay branching fractions.

33 pages, 18 figures, 4 tables. Version accepted for publication in JHEP

References in corpus (25)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• Distinguishing seesaw models at LHC with multi-lepton signals
• Neutrino Masses and the LHC: Testing Type II Seesaw
• Pair Production of Doubly-Charged Scalars: Neutrino Mass Constraints and Signals at the LHC
• Vector boson fusion at multi-TeV muon colliders
• Probing Majorana Phases and Neutrino Mass Spectrum in the Higgs Triplet Model at the LHC
• Neutrino mass hierarchy and Majorana CP phases within the Higgs triplet model at the LHC
• Direct determination of neutrino mass parameters at future colliders
• Leptonic signatures of doubly charged Higgs boson production at the LHC
• Testing a Neutrino Mass Generation Mechanism at the Large Hadron Collider
• Probing Doubly Charged Higgs Bosons at the LHC through Photon Initiated Processes
• LHC Phenomenology of Type II Seesaw: Nondegenerate Case
• Correlative signatures of heavy Majorana neutrinos and doubly-charged Higgs bosons at the Large Hadron Collider
• Type-II Seesaw Model and Multilepton Signatures at Hadron Colliders
• LHC Run-I constraint on the mass of doubly charged Higgs bosons in the same-sign diboson decay scenario
• Same-Sign Tetra-Leptons from Type II Seesaw
• Towards deconstructing the simplest seesaw mechanism
• A Compromise between Neutrino Masses and Collider Signatures in the Type-II Seesaw Model
• Doubly-charged Higgs Boson at Future Electron-Proton Collider
• Double Higgs production at LHC, see-saw type II and Georgi-Machacek model
• Associated production of SM Higgs with a photon in type-II seesaw models at the ILC
• Search for ${\delta }^{\pm \pm }$ with new decay patterns at the LHC
• High-energy colliders as a probe of neutrino properties