Search for a light muon-philic $Z^{\prime }$ with the NA64-$e$ experiment at CERN

Yu. M. Andreev, D. Banerjee, B. Banto Oberhauser +58

The extension of Standard Model made by inclusion of additional $U(1)$ gauge $L_{\mu }-L_{\tau }$ symmetry can explain the difference between the measured and the predicted value of the muon…