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Production of Open-Charm Hadrons in AuAu Collisions at √sNN = 200 GeV Mesured by the STAR Experiment

Nuclear Physics Institute, Czech Academy of Sciences, Rez, 250 68, Czech Republic
Presented at Hot Quarks 2018—Workshop for young scientists on the physics of ultra-relativistic nucleus-nucleus collisions, Texel, The Netherlands, 7–14 September 2018.
Proceedings 2019, 10(1), 10; https://doi.org/10.3390/proceedings2019010010
Published: 10 April 2019
Charm quarks are primarily produced at the early stages of ultra-relativistic heavy-ion collisions and can therefore probe the quark-gluon plasma throughout its whole evolution. Final-state open-charm hadrons are commonly used to experimentally study the charm quark interaction with the medium. Thanks to the excellent secondary vertex resolution provided by the Heavy Flavor Tracker, STAR is able to directly reconstruct D ± , D 0 , D s , and Λ c ± via their hadronic decay channels. The topological cuts for signal extraction are optimized using supervised machine learning techniques. In these proceedings, we present an overview of recent open charm results from the STAR experiment. The nuclear modification factors of open-charm mesons and Λ c ± /D 0 ratio are shown as functions of transverse momentum and collision centrality.
Keywords: quark-gluon plasma; STAR experiment; heavy-ion collisions; heavy-flavor mesons; nuclear modification factor; baryon/meson ratio quark-gluon plasma; STAR experiment; heavy-ion collisions; heavy-flavor mesons; nuclear modification factor; baryon/meson ratio
MDPI and ACS Style

Vanek, J. Production of Open-Charm Hadrons in AuAu Collisions at √sNN = 200 GeV Mesured by the STAR Experiment
. Proceedings 2019, 10, 10.

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