First measurement of $\varphi$ meson production in 30 GeV proton-nucleus reactions via di-electron decay at J-PARC

PARC E16 collaboration, Satomi Nakasuga, Yuhei Morino +44

We present the first measurement of the production of the $\varphi$ meson in 30 GeV proton-nucleus interactions on carbon and copper targets via the di-electron decay channel. The measur…