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

D$^{*\pm}$ Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV Measured by the STAR Experiment

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Open heavy flavour Poster Session


Ms Yuanjing Ji (University of Science and Technology of China)


One of the goals of heavy-ion collisions is to search for the Quark-Gluon Plasma (QGP) and study its properties. Due to their large masses, heavy quarks are mainly produced in the initial hard scatterings during the early stage of heavy-ion collisions and experience the entire space-time evolution of the system. At the STAR experiment, utilizing high-precision secondary vertex reconstruction provided by the Heavy Flavor Tracker (HFT), $D^{0}$ mesons have been comprehensively studied to investigate the charm quark transport in the QGP. Measurement of $D^{*\pm}$ production is complementary to the $D^{0}$ measurement in studying the medium modification to the open charm meson production. It also provides useful information on feed-down contributions to the $D^{0}$ yields.

In this poster, measurement of $D^{*\pm}$ production at mid-rapidity ($|y|<1$) in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$ = 200 GeV is reported. $D^{*\pm}$ are reconstructed via the hadronic decay channel ($D^{*+}\rightarrow D^{0}\pi^{+}$, $D^{0}\rightarrow K^{-}\pi^{+}$, and its charge conjugate channel) utilizing the STAR HFT detector. The invariant yields of $D^{*\pm}$ and the ratios of $D^{*\pm}/D^{0}$ yields will be shown as a function of transverse momentum in different centralities. The nuclear modification factor ($R_{AA}$) for $D^{*\pm}$ will be presented as well, and physics implications will be discussed.

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

Primary author

Zhenyu Ye (University of Illinois at Chicago)

Presentation Materials