New results on jets and heavy flavor in heavy-ion collisions with ALICE

TL;DR

This paper presents new experimental results from ALICE on jet shapes and charm meson flow in heavy-ion collisions, providing insights into the Quark-Gluon Plasma's properties and charm quark participation in collective expansion.

Contribution

It reports novel measurements of jet shape observables and charm meson elliptic flow with improved precision, enhancing understanding of QGP dynamics and charm quark behavior.

Findings

Charm quarks participate in collective flow.

No jet quenching observed in high-activity p--Pb collisions.

Enhanced precision in charm meson flow measurements.

Abstract

The large statistics accumulated during the LHC Run-1 and Run-2 have provided the unique opportunity to study the properties of the Quark-Gluon Plasma using rare hard probes. The ALICE Collaboration has presented new results on the jet shape observables in p--Pb and Pb--Pb collision. Using data from Run-2, the elliptic flow of open and hidden charm mesons have been measured with much better precision, confirming that charm quarks participate in the collective dynamic expansion with the medium. In p--Pb collisions the absence of jet quenching correlated with high event activity has been confirmed by a self-normalized semi-inclusive hadron+jet measurement.