Search for leptonic decays of the dark photon at NA62

The NA62 collaboration
Phys.Rev.Lett. 133 (2024) 111802, 2024.

Abstract (data abstract)
CERN-SPS. Upper limit at 90% CL on dark photon coupling $\varepsilon$ vs mass from a production and decay search and its reinterpretation in terms of model-independent ALPs using data collected by the NA62 experiment.

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