Volume 345 -
International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (HardProbes2018) -
Jets & High-pT Hadrons
Constraining energy loss from high-pt azimuthal asymmetries
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Pre-published on:
February 20, 2019
Published on:
April 24, 2019
Abstract
The nuclear modification factor $R_{\rm AA}$ has been satisfactorily described by various jet quenching models. Nonetheless, all these formalisms, until very recently, underpredicted the high-$p_{\rm T}$ (> 10 GeV) elliptic flow $v_2$. We find that the simultaneous description of these observables requires to strongly suppress the quenching for the first $\sim 0.6$ fm after the collision. This shows the potential of jet quenching observables to constrain the dynamics of the initial stages of the evolution.
DOI: https://doi.org/10.22323/1.345.0070
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.