A Warped Model of Dark Matter

Friday June 25th, 14:30 - Seminar room

Speaker: Benedict von Harling (University of Melbourne)


We present a model of dark matter in a warped extra dimension in which various dark sector mass scales are naturally generated without supersymmetry. The dark matter, whose mass is in the TeV range, is charged under a dark abelian gauge group. The corresponding dark photon obtains a mass in the

GeV range via a dilaton coupling, allowing the dark matter to annihilate predominantly into leptons. This can explain the positron excess recently observed by PAMELA and FERMI. Moreover, the dark matter can naturally be split into pseudo-Dirac states with tiny mass splittings, implementing the inelastic dark matter scenario.


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