Ratio of semi-inclusive recoil jet distributions, \Drecoil, for high-EA and low-EA \pPb\ collisions~, using V0A. Charged-particle jets are reconstructed with anti-\kT, $R=0.4$. Vertical lines show the statistical error Grey boxes show the systematic uncertainty of the ratio, which accounts for correlated uncertainty in numerator and denominator. The red line indicates the ratio for a \pT-shift of the high-EA distribution of $-0.4$\,\gev, corresponding to the 90\% CL limit in medium-induced energy transport out of the jet cone from this measurement.