Review on Dark Photon
1 Novosibirsk State University, 630090 Novosibirsk, Russia
2 Dipartimento di Fisica e di Scienze della Terra, Universitá di Messina Italy
3 INFN Sezione Catania, Italy
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Published online: 26 April 2016
e+e− collider experiments at the intensity frontier are naturally suited to probe the existence of a force beyond the Standard Model between WIMPs, the most viable dark matter candidates. The mediator of this new force, known as dark photon, should be a new vector gauge boson very weakly coupled to the Standard Model photon. No significant signal has been observed so far. I will report on current limits set on the coupling factor ε2 between the photon and the dark photon by e+e− collider experiments.
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