EPJ Web Conf.
Volume 171, 201817th International Conference on Strangeness in Quark Matter (SQM 2017)
|Number of page(s)||4|
|Section||Small Systems (parallel session)|
|Published online||02 February 2018|
Heavy quark flow as better probes of QGP properties
Key Laboratory of Quarks and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
2 Department of Physics, East Carolina University, Greenville, North Carolina 27858, USA
3 College of Science, Wuhan University of Science and Technology, Wuhan, Hubei 430065, China
4 Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
5 School of Science, Huzhou University, Huzhou, Zhejiang 313000, China
Published online: 2 February 2018
In earlier studies we have proposed that most parton v2 comes from the anisotropic escape of partons, not from the hydrodynamic flow, even for semi-central Au+Au collisions at = 200 GeV. Here we study the flavor dependence of this escape mechanism with a multi-phase transport model. In contrast to naive expectations, we find that the charm v2 is much more sensitive to the hydrodynamic flow than the lighter quark v2, and the fraction of v2 from the escape mechanism decreases strongly with the quark mass for large collision systems. We also find that the light quark collective flow is essential for the charm quark v2. Our finding thus suggests that heavy quark flows are better probes of the quark-gluon-plasma properties than light quark flows.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.