Supersymmetric U(1){sup '} model with multiple dark matters
- Department of Physics, KAIST, Daejon 305-701 (Korea, Republic of)
- Institute for Fundamental Theory, University of Florida, Gainesville, Florida 32611 (United States)
We consider a scenario where a supersymmetric model has multiple dark matter particles. Adding a U(1){sup '} gauge symmetry is a well-motivated extension of the minimal supersymmetric standard model (MSSM). It can cure the problems of the MSSM such as the {mu} problem or the proton decay problem with high-dimensional lepton number and baryon number violating operators which R parity allows. An extra parity (U parity) may arise as a residual discrete symmetry after U(1){sup '} gauge symmetry is spontaneously broken. The lightest U-parity particle (LUP) is stable under the new parity becoming a new dark matter candidate. Up to three massive particles can be stable in the presence of the R parity and the U parity. We numerically illustrate that multiple stable particles in our model can satisfy both constraints from the relic density and the direct detection, thus providing a specific scenario where a supersymmetric model has well-motivated multiple dark matters consistent with experimental constraints. The scenario provides new possibilities in the present and upcoming dark matter searches in the direct detection and collider experiments.
- OSTI ID:
- 21035744
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 77, Issue 1; Other Information: DOI: 10.1103/PhysRevD.77.015008; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Signals of dark matter in a supersymmetric two dark matter model
Revival of the thermal sneutrino dark matter