Figure 65

Comparison of the probability distribution of the shower shape parameter, $\sigma_{\rm long}^{2}$, of neutral clusters with $n^{\rm w}_{\rm cell}>1$ (left) and $>4$ (right) for different fractions of induced energy in the cross talk model (see Eq. 29), in pp collisions at $\sqrt{s}=$ 7 TeV EMCal triggered data are compared to PYTHIA6 simulated events with a direct photon and a jet or two jets in the final state, where one jet is triggered by a decay $\gamma$ on EMCal acceptance with $p_{\rm T}>$ 3.5 GeV/$c$. Data and default MC (untuned simulation) are the same as in Fig. 64.