We calculate the away-side hadron-triggered modification factor I in AA collisions at RHIC and LHC energies for scenarios with and without quark-gluon plasma formation in pp collision. We find that for both scenarios theoretical results for I agree well with the available data for 2.76 TeV Pb + Pb and 0.2 TeV Au + Au collisions. We make predictions for I in 7 TeV O + O collisions that are planned at the LHC. Our results show that measuring I in the whole centrality interval and at small centrality (≲ 5 %) may give information on the presence of jet quenching in pp collisions.
B. G. Zakharov (Wed,) studied this question.