Searching for the dark photon at the Future Circular Lepton Collider

Abstract

In the context of future electroweak precision measurements at the Future Circular Lepton Collider (FCC-ee), we consider recent proposals aimed at finding signatures of physics beyond the Standard Model. In particular, we focus on recent novel suggestions for very precise direct measurements of α e m(MZ2). It is shown that at a level of precision of order 10-5, the effects of a dark photon may be very significant.

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