Jan 10 – 15, 2021
Weizmann Institute of Science
Asia/Jerusalem timezone
See you at IS2023 in Copenhagen in June 2023

Study of open heavy-flavour production and anisotropy in p-Pb collisions with ALICE

Jan 11, 2021, 5:25 PM
20m
Andrea’s room 3 (vDLCC)

Andrea’s room 3

vDLCC

oral Physics at low-x and gluon saturation CGC

Speaker

Jaime Norman (University of Liverpool (GB))

Description

Heavy quarks (charm and beauty) are primarily produced in hard-scattering processes with large momentum transfer due to their large masses. They are effective probes to study cold-nuclear-matter (CNM) effects such as gluon saturation, shadowing, $k_{\rm T}$ broadening and energy loss in CNM in p-Pb collisions. In recent years, effects ascribed to the collective expansion of the deconfined nuclear matter, the quark-gluon plasma (QGP) produced in Pb-Pb collisions, such as long-range flow-like correlations and the enhancement of baryon production, have also been observed at high multiplicity in small system (pp and p-Pb) collisions. The study of open heavy flavours in high-multiplicity p-Pb collisions provides important information to understand how the possible presence of collective effects could modify the production of heavy flavours.

In this contribution, the nuclear modification factors ($R_{\rm pPb}$ and $Q_{\rm pPb}$) of D mesons measured with the ALICE detector via their hadronic decays at midrapidity in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV will be presented. The results provide a significant constraint on the nuclear-modified parton distribution function at small Bjorken-$x$. The elliptic flow of open heavy-flavour particle at mid and forward-rapidity in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 8.16 and 5.02 TeV will be discussed. Such studies are important to explore the origin of the collective-like effects observed in small systems. At final, the self-normalized yield of open heavy-flavour particle as a function of multiplicity in p-Pb collisions at $\sqrt{s_{\rm NN}} = 8.16$ TeV, which provides a natural link between soft and hard processes that occur in the collision and allows one to study their interplay, will be discussed as well.

Primary author

Jaime Norman (University of Liverpool (GB))

Presentation materials