scholarly journals Directed flow of open charm in Au+Au collisions at sNN=200 GeV using a quark coalescence model

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
Md Nasim ◽  
Subhash Singha
Universe ◽  
2019 ◽  
Vol 5 (9) ◽  
pp. 196
Author(s):  
Jan Vanek

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.


2004 ◽  
Vol 30 (8) ◽  
pp. S1197-S1200 ◽  
Author(s):  
Lijuan Ruan ◽  
(for the STAR Collaboration)
Keyword(s):  

2019 ◽  
Vol 123 (16) ◽  
Author(s):  
J. Adam ◽  
L. Adamczyk ◽  
J. R. Adams ◽  
J. K. Adkins ◽  
G. Agakishiev ◽  
...  
Keyword(s):  

2020 ◽  
Vol 102 (5) ◽  
Author(s):  
Xin-Li Sheng ◽  
Qun Wang ◽  
Xin-Nian Wang

2006 ◽  
Vol 633 (4-5) ◽  
pp. 488-491 ◽  
Author(s):  
A. Bialas ◽  
J. Rafelski

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