Indirect Detection of Little Higgs Dark Matter

Abstract

Little Higgs models with T parity contain an attractive dark matter candidate, the heavy photon. We compute the cross section of the heavy photon annihilation into Z-photon pairs, which turns out to be substantially higher than the previously computed cross section for the two photon final state. Unfortunately, even with this enhancement, the monochromatic photon flux from galactic heavy photon annihilation is unlikely to be detectable by GLAST or the currently operating atmospheric Cerenkov telescopes. We also compute the flux of high-energy neutrinos from the annihilation of the heavy photons captured by the Sun and the Earth. The maximum flux of upward-going muons due to such neutrinos is about 1 yr^{-1}km^{-2}.

13 pages, 3 figures

References in corpus (41)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Supersymmetric Dark Matter
• Cold collapse and the core catastrophe
• Electroweak symmetry breaking from dimensional deconstruction
• The Littlest Higgs
• Resolving the Structure of Cold Dark Matter Halos
• EGRET Observations of the Extragalactic Gamma Ray Emission
• Little Higgs Review
• TeV Symmetry and the Little Hierarchy Problem
• Observability of Gamma Rays from Dark Matter Neutralino Annihilations in the Milky Way Halo
• Little Hierarchy, Little Higgses, and a Little Symmetry
• Very high energy gamma rays from the direction of Sagittarius A*
• Little Higgs Models and Their Phenomenology
• The Status of the H.E.S.S. Project
• Calibration of cameras of the H.E.S.S. detector
• VERITAS: the Very Energetic Radiation Imaging Telescope Array System
• Phenomenology of the Littlest Higgs with T-Parity
• T Parity and the Littlest Higgs
• Electroweak Precision Constraints on the Littlest Higgs Model with T Parity
• A "Baedecker" for the Dark Matter Annihilation Signal
• Errata for "The Higgs Hunter's Guide"
• Little Higgs Dark Matter
• Detection of Sub-TeV Gamma-Rays from the Galactic Center Direction by CANGAROO-II
• TeV Gamma-Ray Observations of the Galactic Center
• The Evolution of Substructure in Galaxy, Group and Cluster Haloes I: Basic Dynamics
• The flavor of a little Higgs with T-parity
• Neutralino annihilation into gamma-rays in the Milky Way and in external galaxies
• Spectra of neutrinos from dark matter annihilations
• Detection of Neutralino Annihilation Photons from External Galaxies
• Phenomenology of Littlest Higgs Model with T-parity: including effects of T-odd fermions
• Another Look at the Flavour Structure of the Littlest Higgs Model with T-Parity
• Dark Matter and Gamma-Rays From Draco: MAGIC, GLAST and CACTUS
• Cosmic Positron Signature from Dark Matter in the Littlest Higgs Model with T-parity
• Challenges in Detecting Gamma-Rays From Dark Matter Annihilations in the Galactic Center
• Limits on Supersymmetric Dark Matter From EGRET Observations of the Galactic Center Region
• Search for Dark Matter with GLAST
• Phenomenology of Mirror Fermions in the Littlest Higgs Model with T-Parity
• Particle-Antiparticle Mixing, epsilon_K, Delta Gamma_q, A_SL^q, A_CP(B_d -> psi K_S), A_CP(B_s -> psi phi) and B -> X_{s,d} gamma in the Littlest Higgs Model with T-Parity
• Dark Matter and the CACTUS Gamma-Ray Excess from Draco
• Improving the Angular Resolution of EGRET and New Limits on Supersymmetric Dark Matter Near the Galactic Center
• Neutrino Astronomy at the South Pole

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• A Weakly Coupled Ultraviolet Completion of the Littlest Higgs with T-parity
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• Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider
• Search for gamma-ray emission from $p$-wave dark matter annihilation in the Galactic Center
• Investigation of Dark Matter in Minimal 3-3-1 Models
• Dark matter in little Higgs model under current experimental constraints from LHC, Planck and Xenon
• Lower Limits on the Strengths of Gamma Ray Lines from WIMP Dark Matter Annihilation
• Dark matter in the $SO(5)\times U(1)$ gauge-Higgs unification
• Precision Measurements of Little Higgs Parameters at the International Linear Collider
• Lepton flavor violation decays ${\tau }^{-}\to {\mu }^{-}{P}_1{P}_2$ in the topcolor-assisted technicolor model and the littlest Higgs model with $T$ parity
• Pair production of the heavy leptons in future high energy linear e^{+}e^{-} colliders
• Top quark chromomagnetic dipole moment in the littlest Higgs model with T-parity
• Status and Prospects of the Two-Higgs-Doublet SU(6)/Sp(6) little-Higgs Model and the Alignment Limit
• Observing Higgs boson production through its decay into gamma-rays: A messenger for Dark Matter candidates
• Rare decays $B_s\to l^{+}{l}^{-}$ and $B\to K{l}^{+}{l}^{-}$ in \the topcolor-assisted technicolor model
• The impossibility of heavy neutrino dark matter in the Littlest Higgs Model with T-parity: constraints from direct search
• Associated production of the scalars and new gauge bosons from a little Higgs model at the LHC
• Direct Detection Constraints on Dark Matter Event Rates in Neutrino Telescopes, and Collider Implications
• Restudy on Dark Matter Time-Evolution in the Littlest Higgs model with T-parity
• Pair production of the heavy leptons associated with a gauge boson gamma or Z at the ILC
• Probing Dark Matter in the Economical 3-3-1 Model
• Using the Higgs boson to probe the littlest Higgs model with T-parity through $Z_H{W}_H$ production at the LHC