Detecting the $L_{\mu }-L_{\tau }$ gauge boson at Belle II

Takeshi Araki, Shihori Hoshino, Toshihiko Ota +2

We discuss the feasibility of detecting the gauge boson of the $U(1{)}_{L_{\mu }-L_{\tau }}$ symmetry, which possesses a mass in the range between MeV and GeV, at the Belle-II experiment. The k…