Scale-Invariant Two Component Dark Matter
arXiv:1808.08706
Abstract
We study a scale invariant extension of the standard model which can explain simultaneously dark matter and the hierarchy problem. In our set-up, we introduce a scalar and a spinor as two-component dark matter in addition to scalon field as a mediator. Interesting point about our model is that due to scale invariant conditions, compared to other two-component dark matter models, it has lower independent parameters. Possible astrophysical and laboratory signatures of two-component dark matter candidate are explored and it is shown that the most contribution of observed relic density of dark matter can be determined by spinor dark matter. Detectability of these dark matter particles is studied and the direct and invisible Higgs decay experiments are used to rule out part of the parameter space of the model. In addition, the dark matter self-interactions are considered and shown that their contribution saturate this constraint in the resonant regions.
22 pages, 14 figures
References in corpus (22)
- Results from a search for dark matter in the complete LUX exposure
- Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
- Dark Matter Halos as Particle Colliders: A Unified Solution to Small-Scale Structure Puzzles from Dwarfs to Clusters
- micrOMEGAs4.1: two dark matter candidates
- A solution to the hierarchy problem from an almost decoupled hidden sector within a classically scale invariant theory
- Constraints on Scalar Dark Matter from Direct Experimental Searches
- Status of invisible Higgs decays
- Dark matter and neutrino masses from a scale-invariant multi-Higgs portal
- On the interpretation of dark matter self-interactions in Abell 3827
- A minimal model for two-component dark matter
- Search for supersymmetry in final states with missing transverse momentum and multiple -jets in proton-proton collisions at TeV with the ATLAS detector
- Two component WIMP-FImP dark matter model with singlet fermion, scalar and pseudo scalar
- Nonthermal Two Component Dark Matter Model for Fermi-LAT -ray excess and 3.55 keV X-ray Line
- Search for supersymmetry in events with four or more leptons in TeV collisions with ATLAS
- Two dark matter components in N_{DM}MSSM and dark matter extension of the minimal supersymmetric standard model and the high energy positron spectrum in PAMELA/HEAT data
- Majorana dark matter in a classically scale invariant model
- Dark Matter and Leptogenesis Linked by Classical Scale Invariance
- Evolving Planck Mass in Classically Scale-Invariant Theories
- Two Component Feebly Interacting Massive Particle (FIMP) Dark Matter
- A Minimal Model For Two-Component FIMP Dark Matter: A Basic Search
- High Energy Positrons and Gamma Radiation from Decaying Constituents of a two-component Dark Atom Model
- Two component dark matter with multi-Higgs portals