Speaker
Description
The production of open heavy flavor in ultrarelativistic heavy ions collisions is known to be one of the best probes of the QGP phase before freeze out as well as of its coupling strength. One of the most topical issues is whether non perturbative effects could increase this strength around the critical temperature and hence communicate a stronger elliptical flow to heavy quarks. In [1], it was however shown that extra ingredients such as the bulk evolution or the hadronization scheme have drastic impact on these physical analysis, pleading for using state of the art approaches to describe all these "extra ingredients". In our contribution, we plan to provide and discuss first systematic results from the Nantes EPOS-HQ model combining the EPOS3 event generator - which has been proved to be able to reproduce a lot of observables in the soft sector for pp, pA and AA -- and the MC$@_s$HQ scheme to describe HQ evolution in QGP. One of the unique feature of EPOSHQ is to model HQ production consistently with the other particles, leading to initial state fluctuations affecting both heavy and light sector. This allows us to proceed to sophisticated analysis mixing light and heavy hadrons. In our contribution, we will take benefit from this newly developped approach to analyse the influence of the energy loss models on both event shape engineering observables such as $v_n(D)$ as a function of the corresponding $Q_n$ and on HQ correlations such as momentum imbalance which can help in constraining such models.
[1] R. Rapp et al, arXiv: 1803.03824