Abstract The azimuthal-correlation distributions between electrons from the decays of heavy-flavor hadrons and associated charged particles in Pb–Pb collisions at s₍₍ = 5. 02 s NN = 5. 02 TeV are reported for the 0–10% and 30–50% centrality classes. This measurement provides access to the jet-like correlation observables in the heavy-flavor sector in Pb–Pb collisions. The analysis is performed for trigger electrons from heavy-flavor hadron decays with transverse momentum 4 4 p T e 16 GeV / c, considering associated particles within the transverse-momentum range 1 1 p T assoc 7 GeV/c GeV / c, and a pseudorapidity difference of | | | Δ η | 1 between the trigger electron and associated particles. The per-trigger nuclear modification factor (IAA I AA) is calculated to compare the near- and away-side peak yields to those in pp collisions at s = 5. 02 s = 5. 02 TeV. In 0–10% central collisions, the IAA I AA indicates a hint of enhancement of associated-particle yields with pT p T 3 GeV/ c on the near side, and a suppression of yields with pT>4 p T > 4 GeV/ c on the away side. The IAA I AA for electron triggers from heavy-flavor hadron decays is compared with that for light-flavor and strange-particle triggers to investigate the dependence on different fragmentation processes and parton-medium dynamics, and is found to be the same within uncertainties.
Abualrob et al. (Tue,) studied this question.