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!

Measurement of $D$ meson production and long-range azimuthal correlation in 8.16 TeV $p$+Pb collisions the ATLAS experiment

May 15, 2018, 5:00 PM
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Open heavy flavour Poster Session


Qipeng Hu (University of Colorado Boulder)


Measurements of production and azimuthal anisotropy of prompt charm mesons ($D^0$ and $D^*$) are presented using $p$+Pb data at $\sqrt{s_{NN}}=8.16$ TeV collected in 2016 by ATLAS. Prompt charmed meson production is measured in minimum bias $p$+Pb data, and is reconstructed via two decay channels: $D^0\rightarrow K+\pi$ and $D^*\rightarrow D^0+\pi\rightarrow K+\pi+\pi$. The measured charm meson production cross sections are comparable with FONLL predictions scaled by $A_\mathrm{Pb} = 208$ within uncertainties. The production asymmetry between forward and backward center-of-mass rapidities for the charm mesons is studied for the range of $|y^*| < 0.5$, and no significant asymmetry is observed. The anisotropy is studied using two-particle correlations, with a template fitting procedure used to subtract the residual jet contribution. Finite long-range correlations are observed for particle pairs containing $D^*$ mesons. The flow modulation of $D^*$ is broadly consistent with what has been observed for light hadrons and muons from heavy quark decays.

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

Primary authors

Barbara Krystyna Wosiek (Institute of Nuclear Physics Polish Academy of Sciences (PL)) Qipeng Hu (University of Colorado Boulder)

Presentation materials