Leptonic and charged kaon decay modes of the $\varphi$ meson measured in heavy-ion collisions at the CERN SPS

D. Adamova, CERES Collaboration

We report a measurement of $\varphi$ meson production in central Pb+Au collisions at E${}_{lab}$/A=158 GeV. For the first time in heavy-ion collisions, $\varphi$ mesons were reconstructed in the…