Fixed Target Constraints on Supersymmetric Hidden Sectors
by
Andrew Spray(U of Melbourne)
→
Europe/Berlin
Buildg. 2a, Sem.R. 2 (DESY Hamburg)
Buildg. 2a, Sem.R. 2
DESY Hamburg
Description
Light hidden sectors coupling to the Standard Model through the vector portal have been proposed for a number of reasons, from dark matter through hidden valleys to grand unification. In a supersymmetric context, they weaken LHC constraints by reducing the missing energy in an event. Low-energy intensity frontier experiments are a natural way to constrain such models. However, nearly all extant searches assume that the hidden gauge boson decays back to the visible sector. For general hidden sectors, and especially supersymmetric ones, the possibility of the decay into other hidden states must be considered. Additionally, there are qualitative differences in the behaviour of supersymmetric hidden sectors, since the vector portal must be embedded in a mixing of superfields with associated additional interactions. We use existing beam dump searches to place new limits on models both with and without supersymmetry.
