Abstract
Heavy mesons (charm and bottom) are one of the few probes which are sensitive to the time evolution of a Quark Gluon Plasma (QGP), light mesons come to a statistical equilibrium latest at the end of the QGP expansion and do therefore not carry information on the QGP properties during the expansion. We discuss here the interaction of the heavy quarks with the QGP partons and how this interaction influences the azimuthal distribution of the heavy mesons. We will argue that there are indications that small \(p_T\) heavy quarks equilibrate in the QGP whereas those with a high \(p_T\) create a finite azimuthal flow due to the different path lengths in the QGP. These are results of the pQCD based Monte-Carlo (MC@sHQ) approach which is coupled to EPOS 2 modeling the expansion of the QGP.
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Notes
- 1.
The term “participant plane” is commonly used for the following definition. We would like to point out though, that the initial conditions used here, do not rely on a participant picture.
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Acknowledgements
This work was supported by the project “Together” of the region Pays de la Loire, France.
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Aichelin, J., Gossiaux, P.B., Nahrgang, M., Werner, K. (2020). What the Azimuthal Distribution of Heavy Mesons Tells Us About the Quark Gluon Plasma?. In: Kirsch, J., Schramm, S., Steinheimer-Froschauer, J., Stöcker, H. (eds) Discoveries at the Frontiers of Science. FIAS Interdisciplinary Science Series. Springer, Cham. https://doi.org/10.1007/978-3-030-34234-0_1
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