Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-02-26
Phys.Rev.D79:095013,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages, 8 figures, 1 table. Minor changes in the text (section 2). Version accepted for publication in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.79.095013
We have considered nonuniversal gaugino mass models of supergravity, arising from a mixture of two superfield contributions to the gauge kinetic term, belonging to a singlet and a nonsinglet representation of the GUT group. In particular we analyse two models, where the contributing superfields belong to the singlet and the 75-dimensional, and the singlet and the 200-dimensional representations of SU(5). The resulting lightest superparticle is a mixed bino-higgsino state in the first case and a mixed bino-wino-higgsino state in the second. In both cases one obtains cosmologically compatible dark matter relic density over broad regions of the parameter space. We predict promising signals in direct dark matter detection experiments as well as in indirect detection experiments via high energy neutrinos coming from their pair-annihilation in the Sun. Besides, we find interesting $\gamma$-ray signal rates that will be probed in the Fermi Gamma-ray Space Telescope. We also expect promising collider signals at LHC in both cases.
Chattopadhyay Utpal
Das Debottam
Roy David P.
No associations
LandOfFree
Mixed Neutralino Dark Matter in Nonuniversal Gaugino Mass Models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Mixed Neutralino Dark Matter in Nonuniversal Gaugino Mass Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixed Neutralino Dark Matter in Nonuniversal Gaugino Mass Models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-254324