Fig. 14.

The dilepton invariant mass distributions for $Z/{\mathit{\gamma }}^{\ast }\to {\mathit{\mu }}^{+}{\mathit{\mu }}^{-}$ candidates. The simulated samples are normalized to the data luminosity. The multijet background shape is taken from a data control sample and normalized to the estimated yield of multijet events. The sum of all expected background and signal contributions is shown as a solid line with a hashed band detailing the statistical uncertainty and labelled “total (stat)”. The legend lists only background sources with a visible contribution