Speaker
Description
The final goal of the jet quenching studies is to extract medium parameters that characterize the QGP formed in high-energy nuclear collisions. In our analysis, we combine event-by-event hydrodynamics, within the EKRT formulation, with jet quenching (ASW Quenching Weights) to obtain high-$p_T$ $R_{AA}$, $v_2$ and $v_3$ for charged particles at RHIC and LHC energies for different centralities.
By defining a $K$-factor that quantifies the departure of the transport coefficient, $\hat{q}$, from an ideal estimate, $K = \hat{q}/(2 \epsilon^{3/4})$, we fit the single-inclusive experimental data for charged particles. Then, using the fitted $K$-value for each energy and centrality we also compute high-$p_T$ $v_2 $ and $v_3$, getting a good agreement with data. As obtained already in previous analyses, this $K$-factor is larger at RHIC than at the LHC but, surprisingly, it is almost independent of the centrality of the collision. We provide some possible explanations to this finding.
| Preferred Track | Jets and High pT Hadrons |
|---|---|
| Collaboration | Not applicable |
