Supersymmetric U(1)′ model with multiple dark matters

Taeil Hur, Hye Sung Lee, Salah Nasri

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)

Abstract

We consider a scenario where a supersymmetric model has multiple dark matter particles. Adding a U(1)′ 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 μ 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)′ 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.

Original languageEnglish
Article number015008
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume77
Issue number1
DOIs
Publication statusPublished - Jan 15 2008

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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