Abstract
The azimuthal correlations of D mesons with charged particles were measured with the ALICE apparatus in pp collisions at {sqrt{s}}=7~mathrm {TeV} and p–Pb collisions at {sqrt{{{s}}_{scriptscriptstyle {mathrm{NN}}}}}=5.02~mathrm {TeV} at the Large Hadron Collider. mathrm{D}^{0}, {mathrm{D}^{+}}, and {mathrm{D}^{*+}} mesons and their charge conjugates with transverse momentum 3<{p}_{mathrm{T}}<16~mathrm {GeV}/c and rapidity in the nucleon-nucleon centre-of-mass system |y_mathrm{cms}|<0.5 (pp collisions) and -0.96<y_mathrm{cms}<0.04 (p–Pb collisions) were correlated to charged particles with {p}_{mathrm{T}}>0.3~mathrm {GeV}/c. 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.
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