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Heavy quark flow as better probes of QGP properties
- Source :
- EPJ Web of Conferences 171, 19005 (2018)
- Publication Year :
- 2019
-
Abstract
- In earlier studies we have proposed that most parton $v_2$ comes from the anisotropic escape of partons, not from the hydrodynamic flow, even for semi-central Au+Au collisions at $\sqrt {s_{NN}}=200$ 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 $v_2$ is much more sensitive to the hydrodynamic flow than the lighter quark $v_2$, and the fraction of $v_2$ 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 $v_2$. Our finding thus suggests that heavy quark flows are better probes of the quark-gluon-plasma properties than light quark flows.<br />Comment: 4 pages, 3 figures, 1 table. Contribution to the proceedings of the 17th International Conference on Strangeness in Quark Matter (SQM 2017), July 10-15, 2017, Utrecht, the Netherlands
- Subjects :
- Nuclear Theory
Nuclear Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- EPJ Web of Conferences 171, 19005 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1912.02115
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1051/epjconf/201817119005