Wednesday, September 25, 2019
Abstract: I present a dark sector scenario based on a 5d AdS space. Such a construction, also motivated as the AdS dual of a composite dark sector, naturally leads to models in which parts of the dark sector vanish at high 4d momentum or temperature. This AdS "opacity" arises from the dressing of propagators by bulk interactions. Exotic signatures are possible from laboratory to cosmological scales, including long-range forces with non-integer behaviour, non-standard momentum losses, periodic signals at colliders, “soft bombs” events, as well as a dark phase transition and a typically small amount of dark radiation.