Abstract
The comparison of angular correlations between charmed mesons and charged hadrons produced in pp, p-Pb and Pb-Pb collisions can give insight into charm quark energy loss mechanisms in the hot nuclear medium formed in heavy-ion collisions and can help to spot possible modifications of charm quark hadronization induced by the presence of the medium. The analysis of pp and p-Pb data and the comparison with predictions from pQCD calculations, besides constituting the necessary baseline for the interpretation of Pb-Pb results, can provide relevant information on charm production and fragmentation processes.We present a study of azimuthal correlations between D0 and D*+ mesons and charged hadrons measured by the ALICE experiment in pp collisions at = 7 TeV and p-Pb collisions at = 5.02 TeV. D mesons were reconstructed from their hadronic decays at central rapidity and in the transverse momentum range 2 < pT < 16 GeV/c, and they were correlated to charged hadrons reconstructed in the pseudorapidity range |η| < 0.8. The current status of the analysis in pp and p-Pb collisions and the prospects for Pb-Pb collisions are discussed.
Highlights
1. Physics motivations ALICE [1] measured pT-differential cross sections for D-meson production at central rapidity in pp [2,3,4] and Pb-Pb [5] collisions
D mesons are reconstructed at central rapidity via their hadronic decays by performing an invariant mass analysis of displaced secondary vertices, exploiting the topology of the decay and the secondary vertex displacement together with particle (K and π) identification
The left panel of Fig. 1√shows the cross section for prompt D0 production measured by ALICE in pp collisions at s = 7 TeV [2], compared with predictions from perturbative QCD calculations (FONLL and GM-VFNS)
Summary
1. Physics motivations ALICE [1] measured pT-differential cross sections for D-meson production at central rapidity in pp [2,3,4] and Pb-Pb [5] collisions. A significant suppression of D-meson yields was found in central Pb-Pb collisions for pT > 4-5 GeV/c, with respect to cross sections in pp collisions, scaled by the nuclear overlap function.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
