Constraining Inert Triplet Dark Matter by the LHC and FermiLAT

Abstract

We study collider phenomenology of inert triplet scalar dark matter at the LHC. We discuss possible decay of Higgs boson to dark matter candidate and apply current experimental data for invisible Higgs decay and $R_{\gamma \gamma }$ to constrain parameter space of our model. We also investigate constraints on dark matter coming from forthcoming measurement, $R_{Z\gamma }$ and mono-Higgs production. We analytically calculate the annihilation cross section of dark matter candidate into $2\gamma$ and $Z\gamma$ and then use FermiLAT data to put constraints on parameter space of Inert Triplet Model. We found that this limit can be stronger than the constraints provided by LUX experiment for low mass DM.

arXiv comment22 pages, 7 figures, Accepted in JCAP

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• Exploring the Hyperchargeless Higgs Triplet Model up to the Planck Scale
• Two-Step Electroweak Symmetry-Breaking: Theory Meets Experiment
• Two Component Singlet-Triplet Scalar Dark Matter and Electroweak Vacuum Stability
• Scalar Multiplet Dark Matter in a Fast Expanding Universe: resurrection of the desert region
• Single Higgs production in association with a photon at electron-positron colliders in extended Higgs models
• Footprint of Triplet Scalar Dark Matter in Direct, Indirect Search and Invisible Higgs Decay
• Prospecting bipartite Dark Matter through Gravitational Waves
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• LHC constraints on large scalar multiplet models with a $Z_2$ symmetry
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