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

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

2010-12-20

arxiv.org/abs/1012.4679v2

Phys.Lett.B701:363-366,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 figure; to be published in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2011.06.009

We consider a supersymmetric model with extra $U(1)_B \times U(1)_L$ 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 $\sigma_{\rm SI} \sim 10^{-3\pm 1}$ pb can be easily accommodated by leptophobic dark matter ($\chi_B$) with correct relic density, if the $U(1)_B$ gauge boson mass is around $2 m_{\chi_B}$. Also the PAMELA and Fermi/LAT data can be fit by leptophilic CDM with mass $\sim 1$ TeV. There could be interesting signatures of new fermions and new gauge bosons at the LHC.

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