The Leptonic Higgs as a Messenger of Dark Matter

Abstract

We propose that the leptonic cosmic ray signals seen by PAMELA and ATIC result from the annihilation or decay of dark matter particles via states of a leptonic Higgs doublet to $\tau$ leptons, linking cosmic ray signals of dark matter to LHC signals of the Higgs sector. The states of the leptonic Higgs doublet are lighter than about 200 GeV, yielding large $\bar{\tau }\tau$ and $\bar{\tau }\tau \bar{\tau }\tau$ event rates at the LHC. Simple models are given for the dark matter particle and its interactions with the leptonic Higgs, for cosmic ray signals arising from both annihilations and decays in the galactic halo. For the case of annihilations, cosmic photon and neutrino signals are on the verge of discovery.

34 pages, 9 figures, minor typos corrected, references added

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Cited by in corpus (27)

• Models of Yukawa interaction in the two Higgs doublet model, and their collider phenomenology
• Bounds on Cross-sections and Lifetimes for Dark Matter Annihilation and Decay into Charged Leptons from Gamma-ray Observations of Dwarf Galaxies
• Nonabelian dark matter: models and constraints
• Lepton-Specific Two-Higgs Doublet Model: Experimental Constraints and Implication on Higgs Phenomenology
• Decaying Dark Matter as a Probe of Unification and TeV Spectroscopy
• Charged Higgs phenomenology in the lepton-specific two Higgs doublet model
• Extracting limits on Dark Matter annihilation from gamma-ray observations towards dwarf spheroidal galaxies
• Triviality and vacuum stability bounds in the three-loop neutrino mass model
• Explaining PAMELA and WMAP data through Coannihilations in Extended SUGRA with Collider Implications
• T(13) Flavor Symmetry and Decaying Dark Matter
• Universally Leptophilic Dark Matter From Non-Abelian Discrete Symmetry
• Galactic Center gamma-ray excess from two-Higgs-doublet-portal dark matter
• Complementarity in direct searches for additional Higgs bosons at the LHC and the International Linear Collider
• Double Type-II Seesaw, Baryon Asymmetry and Dark Matter for Cosmic e^\pm Excesses
• Dark matter annihilation through a lepton-specific Higgs boson
• Charge Asymmetric Cosmic Ray Signals From Dark Matter Decay
• The Galactic Center Region Gamma Ray Excess from A Supersymmetric Leptophilic Higgs Model
• Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models
• Probing dark matter models with neutrinos from the Galactic center
• EFT analysis of leptophilic dark matter at future electron-positron colliders in the mono-photon and mono-$Z$ channels
• The PAMELA and Fermi signals from long-lived Kaluza-Klein dark matter
• Testing Higgs models via the $H^{\pm }{W}^{\mp }Z$ vertex by a recoil method at the International Linear Collider
• The Supersymmetric Leptophilic Higgs Model
• Neutrinos from the Sun can discover dark matter-electron scattering
• Two-Higgs Doublet Model Effective Field Theory
• Astrophysical aspects of milli-charged dark matter in a Higgs-Stueckelberg model
• Observing CP-violating Higgs Signals with Heavy Majorana Neutrinos