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Hidden gauginos of an unbroken U(1): cosmological constraints and phenomenological prospects

Hidden gauginos of an unbroken U(1): cosmological constraints and phenomenological prospects

We study supersymmetric scenarios where the dark matter is the gaugino of an unbroken hidden U(1) which interacts with the visible world only via a small kinetic mixing with the hypercharge. Strong constraints on the parameter space can be derived from avoiding overclosure of the Universe and from requiring successful …