Browsing Institutt for fysikk by Author "Urdshals, Einar"
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On dark atoms, massive dark photons and millicharged sub-components
Kahlhoefer, Felix; Urdshals, Einar (Peer reviewed; Journal article, 2020)We present a simple model of two dark matter species with opposite millicharge that can form electrically neutral bound states via the exchange of a massive dark photon. If bound state formation is suppressed at low ...