Abstract
Thanks to its excellent tracking and particle identification performance, the ALICE detector is capable of measuring D mesons at mid-rapidity via their hadronic decay channels down to very low transverse momentum. We show an extension of the prompt D0 pT-differential cross section measurement down to zero transverse momentum, which allows us to determine the pT-integrated charm production cross section at mid-rapidity in pp collisions at . We also present measurements of azimuthal correlations of prompt D0, D+ and D*+ mesons with charged hadrons in pp collisions at and p-Pb collisions at and compare the results with expectations from models.
Highlights
The study of heavy-flavour production in pp collisions at LHC energies allows us to test perturbative QCD (pQCD) calculations and it provides a reference for studies in heavy-ion collisions
We show an extension of the prompt D0 pT-differential cross section measurement down to zero transverse momentum, which allows us to d√etermine the pT-integrated charm production cross section at mid-rapidity in pp collisions at s = 7 TeV
We present measurements of azimut√hal correlations of prompt D0, D+√and D∗+ mesons with charged hadrons in pp collisions at s = 7 TeV and p–Pb collisions at sNN = 5.02 TeV and compare the results with expectations from models
Summary
The study of heavy-flavour production in pp collisions at LHC energies allows us to test perturbative QCD (pQCD) calculations and it provides a reference for studies in heavy-ion collisions. An analysis technique without selections on the displaced vertex topology allowed measurements of the pT√-differential prompt D0 production cross section down to pT = 0 GeV/c [1] in pp collisions at s = 7 TeV with ALICE, extending the pT reach of previous measurements [2].
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