Speaker
Dr
Ketevi Adikle Assamagan
(Brookhaven National Laboratory)
Description
Hidden sector or dark sector states appear in many extensions to the Standard Model, to provide a candidate for the dark matter in the universe or to explain astrophysical observations of positron excesses. A hidden or dark sector can be introduced with an additional U(1)d dark gauge symmetry. The presence of the dark sector could be inferred either from deviations from the SM-predicted rates of Drell-Yan (DY) events or from Higgs boson decays through exotic intermediate states. The discovery of the Higgs boson during Run 1 of the Large Hadron Collider opens a new and rich experimental program that includes the search for exotic decays H —> Z Zdark —> 4l and. H —> Zdark Zdark ->4l, where Zdark is a dark vector boson.
In this talk, we will review the status of current searches for dark sector states with the ATLAS detector and the prospects for LHC Run 2.
Primary author
Dr
Ketevi Adikle Assamagan
(Brookhaven National Laboratory)