Multiplicity Dependence of Heavy-Flavour Correlations with Charged Particle and Collective Effects in p–Pb Collisions at √sNN = 5.02 TeV with ALICE at LHC

Marianna Mazzilli

doi:10.3390/proceedings2019010020

Marianna Mazzilli

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https://doi.org/10.3390/proceedings2019010020

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Azimuthal correlation studies of heavy-flavour particles with charged particles in p–Pb collisions can give an insight into the cold nuclear matter effects on heavy-quark production and hadronization into heavy-flavour jets. Multiplicity-dependent measurements of angular correlations of heavy-flavour particles with charged hadrons allow us to investigate the collective behavior of the system and the initial state effects on heavy flavour hadron production. In addition, they can reveal possible modifications of the heavy-quark fragmentation and hadronization at different multiplicities. We present ALICE measurements of azimuthal correlations of prompt D-mesons with charged hadrons as a function of the multiplicity in p–Pb collisions at s NN = 5.02TeV. Moreover, the elliptic flow ( v 2 ) of heavy-flavour hadron decay electrons in high-multiplicity p–Pb collisions at s NN = 5.02 TeV, obtained using correlations with charged particles, is reported.

Highlights

Measurements of heavy-flavour production in p–Pb collisions allow to characterize the effects of the presence of a nucleus in the colliding system
Differences between the measurements in pp and p–Pb collisions can give an insight into the cold nuclear matter effects on heavy-quark production and hadronization in p–Pb collisions and help to disentangle the effects related to the presence of the Quark-Gluon Plasma in Pb–Pb collisions
Azimuthal correlations between D-mesons and charged particles have been studied as a function of centrality in p–Pb collisions at sNN = 5.02 TeV

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Introduction

Measurements of heavy-flavour production in p–Pb collisions allow to characterize the effects of the presence of a nucleus in the colliding system (cold nuclear matter effects [1]). Charged hadrons as a function of the multiplicity in p–Pb collisions at sNN = 5.02TeV. The elliptic flow (v2 ) of heavy-flavour hadron decay electrons in high-multiplicity p–Pb collisions at sNN = 5.02 TeV, obtained using correlations with charged particles, is reported.

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