Journal Article Measurement of azimuthal correlations of D mesons with charged particles in pp collisions at s√=7 TeV and p–Pb collisions at √sNN=5.02 TeV 

ALICE Collaboration  ,  Busch, O.  ,  Chujo, T.  ,  Esum, S.  ,  Miake, Y.

77 ( 4 )  , p.245 , 2017-04 , Springer
ISSN:1434-6044
NCID:AA11188397
Description
The azimuthal correlations of D mesons with charged particles were measured with the ALICE apparatus in pp collisions at s√=7 TeV and p–Pb collisions at sNN−−−√=5.02 TeV at the Large Hadron Collider. D0, D+, and D∗+ mesons and their charge conjugates with transverse momentum 3<pT<16 GeV/c and rapidity in the nucleon-nucleon centre-of-mass system |ycms|<0.5 (pp collisions) and −0.96<ycms<0.04 (p–Pb collisions) were correlated to charged particles with pT>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.
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