Measurement of azimuthal correlations of D mesons with charged particles in pp collisions at TeV and p–Pb collisions at TeV

The azimuthal correlations of D mesons with charged particles were measured with the ALICE apparatus in pp collisions at and p–Pb collisions at at the Large Hadron Collider. , , and mesons and their charge conjugates with transverse momentum and rapidity in the nucleon-nucleon centre-of-mass system (pp collisions) and (p–Pb collisions) were correlated to charged particles with . The yield of charged particles in the correlation peak induced by the jet containing the D meson and the peak width are compatible within uncertainties in the two collision systems. The data are described within uncertainties by Monte-Carlo simulations based on PYTHIA, POWHEG, and EPOS 3 event generators.