Open heavy-flavour measurements in pp and Pb-Pb collisions with ALICE at the LHC

TL;DR

This paper reviews measurements of open heavy-flavour production in proton-proton and lead-lead collisions at the LHC using the ALICE detector, comparing results with theoretical models and exploring medium effects.

Contribution

It provides a comprehensive overview of open heavy-flavour measurements with ALICE, including new data on nuclear modification factors and elliptic flow in heavy-ion collisions.

Findings

Measured cross sections agree with pQCD calculations.

Observed nuclear modification factor $R_{AA}$ indicates medium effects.

Elliptic flow $ u_2$ suggests collective behavior of heavy quarks.

Abstract

We present an overview of measurements related to open heavy-flavour production with the ALICE experiment at the LHC. Studies are performed using single leptons (electrons at mid-rapidity and muons at forward-rapidity) and D mesons, which are reconstructed via their hadronic decay channels. The measured differential production cross sections in proton-proton collisions at $\sqrt{s}$ = 2.76 and 7 TeV are in agreement with perturbative QCD calculations. Results from Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV on the nuclear modification factor $R_{AA}$ are shown, along with the elliptic flow $\nu_2$.