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Searching for the dark photon at the Future Circular Lepton Collider
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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.
Forward citations
Cited by 2 Pith papers
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Relaxed constraints for dark matter with axial coupling to a dark photon
Axial coupling of Dirac dark matter to a kinetically-mixed dark photon suppresses the standard direct-detection signal and opens large allowed regions in the WIMP parameter space.
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Relaxing constraints on a broad dark photon
The paper argues that adding decays to dark matter broadens the dark photon and could relax the CMS exclusion bound on its mixing parameter by one to two orders of magnitude.
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