Show simple item record

dc.contributor.authorInghirami, Gabriele
dc.contributor.authorvan Hees, Hendrik
dc.contributor.authorEndres, Stephan
dc.contributor.authorTorres-Rincon, Juan M.
dc.contributor.authorBleicher, Marcus
dc.identifier.citationInghirami, G., van Hees, H., Endres, S., Torres-Rincon, J. M., & Bleicher, M. (2019). Elliptic flow and RAA of D mesons at FAIR comparing the UrQMD hybrid model and the coarse-graining approach. <em>European Physical Journal C</em>, 79 (1), 52. <a href="">doi:10.1140/epjc/s10052-019-6537-6</a>fi
dc.description.abstractWe present a study of the elliptic flow and RAA of D and D¯ mesons in Au+Au collisions at FAIR energies. We propagate the charm quarks and the D mesons following a previously applied Langevin dynamics. The evolution of the background medium is modeled in two different ways: (I) we use the UrQMD hydrodynamics + Boltzmann transport hybrid approach including a phase transition to QGP and (II) with the coarse-graining approach employing also an equation of state with QGP. The latter approach has previously been used to describe di-lepton data at various energies very successfully. This comparison allows us to explore the effects of partial thermalization and viscous effects on the charm propagation. We explore the centrality dependencies of the collisions, the variation of the decoupling temperature and various hadronization parameters. We find that the initial partonic phase is responsible for the creation of most of the D/D¯ mesons elliptic flow and that the subsequent hadronic interactions seem to play only a minor role. This indicates that D/D¯ mesons elliptic flow is a smoking gun for a partonic phase at FAIR energies. However, the results suggest that the magnitude and the details of the elliptic flow strongly depend on the dynamics of the medium and on the hadronization procedure, which is related to the medium properties as well. Therefore, even at FAIR energies the charm quark might constitute a very useful tool to probe the quark–gluon plasma and investigate its
dc.relation.ispartofseriesEuropean Physical Journal C
dc.rightsCC BY 4.0
dc.subject.otherelliptic flowfi
dc.titleElliptic flow and RAA of D mesons at FAIR comparing the UrQMD hybrid model and the coarse-graining approachfi
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineTeoreettinen fysiikka
dc.rights.copyright© The Authors, 2019

Files in this item


This item appears in the following Collection(s)

Show simple item record

CC BY 4.0
Except where otherwise noted, this item's license is described as CC BY 4.0