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arXiv · hep-ph/0702223

Revival of the Thermal Sneutrino Dark Matter

Hye-Sung Lee·Konstantin T. Matchev·Salah Nasri
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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 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.

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Hye-Sung Lee, Konstantin T. Matchev, Salah Nasri. 2007-09-08. Revival of the Thermal Sneutrino Dark Matter. https://doi.org/10.1103/physrevd.76.041302

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