Relative dynamical fluctuation $\sqrt{C_m}/M(\pt)_m$ normalized to $\langle \rm{d}N_{\rm ch}/\rm d\eta \rangle^{-0.5}$ (see text) as a function of $\langle \rm{d}N_{\rm ch}/\rm d\eta \rangle$ in pp and Pb-Pb collisions at $\snn$=2.76 TeV. The ALICE data are compared to results from HIJING and AMPT. |