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arXiv · 2504.06602

Searching for the dark photon at the Future Circular Lepton Collider

X. G. Wang·A. W. Thomas
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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 $\alpha_{\rm e m}(M_Z^2)$. 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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X. G. Wang, A. W. Thomas. 2025-04-09. Searching for the dark photon at the Future Circular Lepton Collider. https://doi.org/10.1016/j.physletb.2025.139573

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