Open charm hadron measurements at STAR

2016 ◽  
Vol 276-278 ◽  
pp. 213-216
Author(s):  
Hao Qiu
Keyword(s):  
Open Charm ◽  
Charm Hadron

scholarly journals Constraints on gluon distribution functions in the nucleon and nucleus from open charm hadron production at the Electron-Ion Collider

2021 ◽  
Vol 104 (5) ◽  
Author(s):  
Matthew Kelsey ◽  
Reynier Cruz-Torres ◽  
Xin Dong ◽  
Yuanjing Ji ◽  
Sooraj Radhakrishnan ◽  
...  
Keyword(s):  
Gluon Distribution ◽  
Hadron Production ◽  
Open Charm ◽  
Distribution Functions ◽  
Charm Hadron

scholarly journals Open-Charm Hadron Measurements in Au+Au Collisions at √sNN = 200 GeV by the STAR Experiment

Universe ◽  
2019 ◽  
Vol 5 (9) ◽  
pp. 196
Author(s):  
Jan Vanek
Keyword(s):  
D Mesons ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Open Charm ◽  
Strong Interactions ◽  
Heavy Flavor ◽  
Directed Flow ◽  
Charm Quarks ◽  
Charm Hadron ◽  
200 Gev

Study of the open-charm hadron production in heavy-ion collisions is crucial for understanding the properties of the Quark-Gluon Plasma. In these papers, we report on a selection of recent STAR measurements of open-charm hadrons in Au+Au collisions at s NN = 200 GeV , using the Heavy-Flavor Tracker. In particular, the nuclear modification factors of D 0 and D ± mesons, elliptic and directed flow of D 0 mesons, D s /D 0 and Λ c / D 0 yield ratios are discussed. The observed suppression of D 0 and D ± mesons suggests strong interactions of the charm quarks with the QGP. The measured elliptic flow of D 0 mesons is large and follows the NCQ scaling, suggesting that charm quarks may be close to thermal equilibrium with the QGP medium. Both D s /D 0 and Λ c / D 0 yield ratios are found to be enhanced in Au+Au collisions. The enhancement can be explained by models incorporating coalescence hadronization of charm quarks. In addition, the directed flow of the D 0 mesons is measured to be negative and larger than that of light-flavor mesons which is in a qualitative agreement with hydrodynamic model predictions with a tilted QGP bulk.

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