The Supersymmetric Standard Models with Decay and Stable Dark Matters

Abstract

We propose two supersymmetric Standard Models (SMs) with decaying and stable dark matter (DM) particles. To explain the SM fermion masses and mixings and have a heavy decay DM particle S, we consider the Froggatt-Nielsen mechanism by introducing an anomalous U(1)_X gauge symmetry. Around the string scale, the U(1)_X gauge symmetry is broken down to a Z_2 symmetry under which S is odd while all the SM particles are even. S obtains a vacuum expectation value around the TeV scale, and then it can three-body decay dominantly to the second/third family of the SM leptons in Model I and to the first family of the SM leptons in Model II. Choosing a benchmark point in the constrained minimal supersymmetric SM with exact R parity, we show that the lightest neutralino DM is consistent with the CDMS II experiment. Considering S three-body decay and choosing suitable parameters, we show that the PAMELA and Fermi-LAT experiments and the PAMELA and ATIC experiments can be explained in Model I and Model II, respectively.

RevTex4, 26 pages, 6 figures, references added, version to appear in EPJC

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• Universally Leptophilic Dark Matter From Non-Abelian Discrete Symmetry
• Direct Detection of Dynamical Dark Matter
• Multi-Component Dark Matter in a Non-Abelian Dark Sector
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• Strategies for Probing Non-Minimal Dark Sectors at Colliders: The Interplay Between Cuts and Kinematic Distributions
• Decaying Asymmetric Dark Matter Relaxes the AMS-Fermi Tension
• Non-Minimal Dark Sectors: Mediator-Induced Decay Chains and Multi-Jet Collider Signatures
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• Decaying Dark Matter in the Supersymmetric Standard Model with Freeze-in and Seesaw mechanims
• A Froggatt-Nielsen Model for Leptophilic Scalar Dark Matter Decay
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• Two component dark matter with multi-Higgs portals
• Dark matter conversion as a source of boost factor for explaining the cosmic ray positron and electron excesses