Abstract
The left-handed sneutrino in the minimal supersymmetric standard model (MSSM) has been ruled out as a viable thermal dark matter candidate, due to conflicting constraints from direct detection experiments and from the measurement of the dark matter relic density. The intrinsic fine-tuning problem of the MSSM, however, motivates an extension with a new U(1)′ gauge symmetry. We show that in the U(1)′-extended MSSM the right-handed sneutrino ν∼R becomes a good thermal dark matter candidate. We identify two generic parameter space regions where the combined constraints from relic density determinations, direct detection, and collider searches are all satisfied.
Original language | English |
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Article number | 041302 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 76 |
Issue number | 4 |
DOIs | |
Publication status | Published - Aug 17 2007 |
Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)