Histogram showing the maximum Lorentz factor distribution (γ_max) of lobe and wing particles (considered without contamination) obtained at a time of 3.78 Myr. The vertical axis represents normalised number of particles (N_p). We see a lower γ_max peak for wing distribution in comparison to the lobe that peaks near 10^7.7. The wing distribution also shows a spread in values with a high γ_max tail (extending up to ∼10^7.7), providing evidence of re-energisation activities in the wings due to diffusive shocks.