Figure 1

Example of fit to the opposite-sign dimuon invariant mass distributions in pp collisions at $\sqrts=13$ TeV (left) and $5.02$ TeV (right). Dashed lines correspond to either signal or background functions, whereas the solid line corresponds to the sum of the signal and background functions.
[png]   [pdf]   [eps]
[png]   [pdf]   [eps]