Abstract
Heavy-flavour hadrons are effective probes to study the Quark-Gluon Plasma (QGP) formed in ultra-relativistic heavy-ion collisions. The ALICE Collaboration measured the D-mesons (D0, D[Formula: see text], D*[Formula: see text] and D[Formula: see text]) production in Pb–Pb collisions at [Formula: see text] = 5.02 TeV. The in-medium energy loss can be studied by means of the nuclear modification factor ([Formula: see text]). The comparison between the D[Formula: see text] and the non-strange D-meson [Formula: see text] can help to study the hadronisation mechanism of the charm quark in the QGP. In semi-central collisions the measurement of the D-meson elliptic flow, [Formula: see text], at low [Formula: see text] allows to investigate the participation of the heavy quarks in the collective expansion of the system while at high [Formula: see text] it constrains the path-length dependence of the energy loss. Furthermore the Event-Shape Engineering (ESE) technique is used to measure D-meson elliptic flow in order to study the coupling of the charm quarks to the light quarks of the underlying medium.
Highlights
Heavy flavours are effective probes to study the Quark-Gluon Plasma (QGP) which is formed in ultra-relativistic heavy-ion collisions
Due to their large masses, heavy quarks are produced in hard scattering processes in the early stages of the collisions before the QGP formation time, which is about 0.3-1.5 fm/c at Large Hadron Collider (LHC) energies 1
The in-medium energy loss can be studied by measuring the nuclear modification factor
Summary
Heavy flavours are effective probes to study the Quark-Gluon Plasma (QGP) which is formed in ultra-relativistic heavy-ion collisions. Due to their large masses, heavy quarks are produced in hard scattering processes in the early stages of the collisions before the QGP formation time, which is about 0.3-1.5 fm/c at Large Hadron Collider (LHC) energies 1. The in-medium energy loss can be studied by measuring the nuclear modification factor This is an Open Access article published by World Scientific Publishing Company. In addition at high pT, the measurement of v2 can provide information on the path length dependence of parton energy loss 8,9
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