Searching for the dark photon at the Future Circular Lepton Collider

X. G. Wang; A. W. Thomas

doi:10.1016/j.physletb.2025.139573

paper

Searching for the dark photon at the Future Circular Lepton Collider

arXiv:2504.06602 · doi:10.1016/j.physletb.2025.139573

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 $I^\pm_{em} (M_{Z}^{2})$ . It is shown that at a level of precision of order $1 0^{- 5}$ , the effects of a dark photon may be very significant.

6 pages, 2 figures. Revised to match the published version