Ratio of charged-particle jet cross section for resolution parameter $R = 0.2$ to other radii $R = X $, with $X$ ranging from $0.3$ to $0.7$, without UE subtraction, and the comparison of calculations from LO (PYTHIA) and NLO event generators (POWHEG+PYTHIA8). The systematic uncertainties of the cross section ratios from data are indicated by solid boxes around data points in the upper panels, and shaded bands around unity in the lower panels. No uncertainties are shown for theoretical predictions for better visibility.