Gordan Krnjaic, Perimeter Institute for Theoretical Physics, "Decisively probing sub-GeV vector-portal dark matter with next generation electron-beam experiments"
KICP seminar: January 30, 2015 @ 12PM
In a broad class of consistent models, MeV to few-GeV dark matter (DM) interacts with ordinary matter through kinetically-mixed vector mediators ("dark photons"). We outline a two-pronged experimental program to decisively test nearly all such scenarios. The first prong involves placing a suitable meter-scale detector downstream of an existing electron beam-dump to directly observe DM produced in electron-nucleus collisions.