Supersymmetric U(1)B x U(1)L model with leptophilic and leptophobic cold dark matters

الأصل · EN

We consider a supersymmetric model with extra U(1)B × U(1)ₗ gauge symmetry that are broken spontaneously. Salient features of this model are that there are three different types of cold dark matter (CDM) candidates, and neutral scalar sector has a rich structure. Light CDM with σ SI 10⁻³± ¹ pb can be easily accommodated by leptophobic dark matter (χB) with correct relic density, if the U(1)B gauge boson mass is around 2 mᵪB. Also the PAMELA and Fermi/LAT data can be fit by leptophilic CDM with mass 1 TeV. There could be interesting signatures of new fermions and new gauge bosons at the LHC.