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Adam, J.; Adamova, D.; Aggarwal, M. M.; Hess, B. A.; Schmidt, H. R.; Schmidt, M.; Wiechula, J. (2017): Measurement of azimuthal correlations of D mesons with charged particles in pp collisions at root s=7 TeV and p-Pb collisions at root(NN)-N-s=5.02 TeV. In: European Physical Journal C, Vol. 77, Nr. 4, 245
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Abstract

The azimuthal correlations of D mesons with charged particles were measured with the ALICE apparatus in pp collisions at root s = 7 TeV and p-Pb collisions at root sNN = 5.02 TeV at the Large Hadron Collider. D-0, D+, and D*+ mesons and their charge conjugates with transverse momentum 3 < pT < 16 GeV/c and rapidity in the nucleonnucleon centre-of-mass system vertical bar y(cms)vertical bar < 0.5 (pp collisions) and -0.96 < y(cms) < 0.04 (p-Pb collisions) were correlated to charged particles with p(T) > 0.3 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.