Displaced Higgs production in type III seesaw

Abstract

We point out that the type III seesaw mechanism introducing fermion triplets predicts peculiar Higgs boson signatures of displaced vertices with two b jets and one or two charged particles which can be cleanly identified. In a supersymmetric theory, the scalar partner of the fermion triplet contains a neutral dark matter candidate which is almost degenerate with its charged components. A Higgs boson can be produced together with such a dark matter triplet in the cascade decay chain of a strongly produced squark or gluino. When the next lightest supersymmetric particle (NLSP) is bino/wino-like, there appears a Higgs boson associated with two charged tracks of a charged lepton and a heavy charged scalar at a displacement larger than about 1 mm. The corresponding production cross-section is about 0.5 fb for the squark/gluino mass of 1 TeV. In the case of the stau NLSP, it decays mainly to a Higgs boson and a heavy charged scalar whose decay length is larger than 0.1 mm for the stau NLSP mixing with the left-handed stau smaller than 0.3. As this process can have a large cascade production $\sim 2$ pb for the squark/gluino mass $\sim 1$ TeV, one may be able to probe it at the early stage of the LHC experiment.

10 pages, 5 figures

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• Minimal Dark Matter
• Distinguishing seesaw models at LHC with multi-lepton signals
• Detection of MSSM Higgs bosons from supersymmetric particle cascade decays at the LHC
• Two Higgs Doublet Type III Seesaw with mu-tau symmetry at LHC
• Signatures of gaugino mass non-universality in cascade Higgs production at the LHC
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• Minimal dark matter in type III seesaw

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• QCD Corrections to Pair Production of Type III Seesaw Leptons at Hadron Colliders
• Distinguishing Inert Higgs Doublet and Inert Triplet Scenarios
• Probing Higgs in Type III Seesaw at the LHC
• Displaced Higgs production in Type-III Seesaw at the LHC/FCC, MATHUSLA and Muon collider
• Testing electroweak scale seesaw models at $e^{-}\gamma$ and $\gamma \gamma$ colliders
• Scrutinizing Vacuum Stability in IDM with Type-III Inverse seesaw
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• Seesaw Models under the Lens of Angular Distributions at ${\mu }^{+}{\mu }^{-},{\mu }^{+}{\mu }^{+},{\mu }^{+}\gamma$ and ${\mu }^{+}{e}^{-}$ Colliders