May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Measurements of inclusive jet suppression, azimuthal dependence of jet yields, and jet substructure at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV with ATLAS

May 16, 2018, 11:10 AM
Sala Perla, 1st Floor (Palazzo del Casinò)

Sala Perla, 1st Floor

Palazzo del Casinò

Parallel Talk Jet modifications and high-pT hadrons Jet modifications and high-pT hadrons


Martin Spousta (Charles University)


A high energy parton is known to lose energy when passing through the hot and dense medium produced in heavy ion collisions. This results in the modification of jet yields and fragmentation patterns. The latest measurements of the nuclear modification factor, $R_{AA}$, for $R=0.4$ jets in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV with the ATLAS detector at the LHC are presented. The analysis is performed over a large range of transverse momentum, up to $p_{\mathrm{T}}=1$ TeV, and differentially in jet $p_{\mathrm{T}}$ and rapidity. The jet yield is also measured as a function of the azimuthal angle with respect to the second- and third-order event planes. The jet azimuthal harmonic coefficients $v_{n}$ are derived as a function of centrality and jet $p_{\mathrm{T}}$ to probe the path length dependence of jet quenching. In addition, a new measurement of the substructure of jets in Pb+Pb and $pp$ collisions is presented which provides complementary information to jet fragmentation functions.

Content type Experiment
Collaboration ATLAS
Centralised submission by Collaboration Presenter name already specified

Primary author

Barbara Krystyna Wosiek (Institute of Nuclear Physics Polish Academy of Sciences (PL))

Presentation materials