Kinetic mixing, dark photons and an extra dimension. Part I
Kinetic mixing, dark photons and an extra dimension. Part I
A bstract Extra dimensions (ED) can provide a useful tool for model-building. In this paper we introduce a single, flat ED extension of the kinetic-mixing/dark photon (DP) portal for dark matter (DM) interactions with the Standard Model (SM) assuming a compactification ‘radius’ of order R −1 ∼ 10−1000 MeV and …