Speaker
Description
Heavy quarks (charm and beauty) are produced via hard parton scatterings in the initial stage of the collision. Thus, they are ideal probes of the Quark-Gluon Plasma (QGP) created in ultra-relativistic heavy-ion collisions at the LHC. Two-particle angular correlation studies in heavy-ion collisions have provided deep insight into the the in-medium partonic energy loss and its dependence on the parton path length in the medium. The extension of these studies to the heavy-flavour sector could shed light on the interaction of the heavy quarks with the medium.
Heavy-flavour correlation measurements in p-Pb collisions are necessary to disentangle final-state QGP-induced modifications from effects caused by cold nuclear matter. In p-Pb collisions, double-ridge long-range correlations have been observed for light particles. They could originate from a collective behaviour of the system, as well as from gluon saturation in the initial state, as addressed by the Color Glass Condensate theory. This feature can also be searched for heavy quarks. Angular correlation of D mesons with charged particles are also useful to probe the properties of charm jets and charm-production processes.
In this contribution, we will present ALICE results on D-meson azimuthal correlations with charged particles in p-Pb collisions at $ \sqrt{s_{\rm{NN}}}$ = 5.02 TeV collected during run 2 at the LHC. The measurement extends the $ p_{\rm T}$ coverage of the previous result obtained with run-1 data and improves significantly its precision. The results are compared with Monte Carlo simulation expectations obtained with PYTHIA and POWHEG event generators and with pp-collision results at $ \sqrt{s}$ = 7 TeV.
| Content type | Experiment |
|---|---|
| Collaboration | ALICE |
| Centralised submission by Collaboration | Presenter name already specified |
