Fig. 4.

Distributions of electron and muon $|\mathit{\eta }|$ and $p_{\mathrm{T}}$ in same-sign $e\mathit{\mu }$ events at $\sqrt{s}=8\mathrm{TeV}$ with at least one $b$-tagged jet. The simulation prediction is normalised to the same integrated luminosity as the data, and broken down into contributions where both leptons are prompt, or one is a misidentified lepton from a photon conversion originating from a top quark decay or from background, or from heavy-flavour decay. In the $p_{\mathrm{T}}$ distributions, the last bin includes the overflows