Measurement of heavy-flavour production, correlations and jets with ALICE

Shingo Sakai

doi:10.1051/epjconf/201817118008

Abstract

In this article, recent ALICE measurements of the RAA and v2 of electrons at mid-rapidity (|y|<0.6) and muons at forward rapidity (2.5<y<4), from semi-leptonic decays of heavy-flavour hadrons in Pb–Pb collisions at [see formula in PDF] = 5.02 TeV are shown. The results of D-tagged jet production cross-section in pp collisions at √s =7 TeV are presented. In addition, the azimuthal correlation of D mesons with charged particles in p–Pb collisions at [see formula in PDF] = 5.02 TeV, and electrons from semi-leptonic decays of heavyflavour hadrons with charged particles in p–Pb and Pb–Pb collisions at [see formula in PDF] = 5.02 TeV are reported.

Highlights

Heavy-flavour production provides relevant information to investigate the strongly interacting medium, the Quark–Gluon Plasma (QGP), formed in heavy-ion collisions at ultrarelativistic energies
Further understanding of properties of heavy quarks in the QGP can be obtained by measurements of jets and the azimuthal correlation of particles originating from heavy flavours, which are sensitive to the possible modification of the fragmentation of heavy quarks
In ALICE, heavy-flavour production has been studied by measuring the azimuthal correlation between heavy flavours and charged particles

Summary

Introduction

Heavy-flavour (charm and beauty) production provides relevant information to investigate the strongly interacting medium, the Quark–Gluon Plasma (QGP), formed in heavy-ion collisions at ultrarelativistic energies. The v2 is sensitive to the transport properties of the medium It reflects the collective motion of heavy quarks in the medium at low pT as well as the path-length dependence of the energy loss at high pT in the non-central collisions. Further understanding of properties of heavy quarks in the QGP can be obtained by measurements of jets and the azimuthal correlation of particles originating from heavy flavours, which are sensitive to the possible modification of the fragmentation of heavy quarks. Such measurements in pp and p–Pb collisions allow studies of jet properties, and address cold nuclear matter and collective effects of heavy quarks

Heavy-flavour production in pp and p–Pb collisions

Heavy-flavour production in Pb–Pb collisions

Summary