6533b85ffe1ef96bd12c1beb
RESEARCH PRODUCT
Constraining energy loss from high-pT azimuthal asymmetries
Risto PaatelainenCarlota AndresCarlos A. SalgadoHarri NiemiNéstor Armestosubject
PhysicsQuenchingEnergy lossNuclear Theorynucl-thHigh Energy Physics::LatticeeducationElliptic flowFOS: Physical scienceshep-phObservableModification factorhiukkasfysiikkaCollision114 Physical sciencesNuclear Theory (nucl-th)AzimuthNuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Nuclear Physics - TheoryJet quenchingNuclear ExperimentydinfysiikkaParticle Physics - Phenomenologydescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-20 |