English

Constraining energy loss from high-$p_{\rm T}$ azimuthal asymmetries

High Energy Physics - Phenomenology 2019-02-21 v1 Nuclear Theory

Abstract

The nuclear modification factor RAAR_{\rm AA} has been satisfactorily described by various jet quenching models. Nonetheless, all these formalisms, until very recently, underpredicted the high-pTp_{\rm T} (> 10 GeV) elliptic flow v2v_2. We find that the simultaneous description of these observables requires to strongly suppress the quenching for the first 0.6\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.

Keywords

Cite

@article{arxiv.1902.07643,
  title  = {Constraining energy loss from high-$p_{\rm T}$ azimuthal asymmetries},
  author = {Carlota Andres and Néstor Armesto and Harri Niemi and Risto Paatelainen and Carlos A. Salgado},
  journal= {arXiv preprint arXiv:1902.07643},
  year   = {2019}
}

Comments

Proceedings of the Hard Probes 2018 conference. 4 pages. 2 figures