Revival of the thermal sneutrino dark matter

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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 nu(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.
Publisher
AMER PHYSICAL SOC
Issue Date
2007-08
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW D, v.76, no.4

ISSN
1550-7998
DOI
10.1103/PhysRevD.76.041302
URI
http://hdl.handle.net/10203/226504
Appears in Collection
PH-Journal Papers(저널논문)
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