Figure 61

Invariant mass distribution for $\jpsi$ candidates from EMCal-triggered events in pp collisions at $\sqrt{s}$ = 7 TeV ($\mathcal{L} \approx 0.4$ pb$^{-1}$, 8M events). Electrons are identified by their energy loss in the TPC ($dE/dx$ > 70) and the $E/p$ ratio in the EMCal ($0.9< E/p< 1.1$) for both legs. A fit to the signal(Crystal Ball [50]) and the background (exponential) is shown in addition.