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Jet quenching in anisotropic flowing matter

Matvey V. Kuzmin1,2,*, Xoán Mayo López3,†, Jared Reiten4,5,‡, and Andrey V. Sadofyev3,6,§

  • 1NRC Kurchatov Institute, Moscow 123182, Russia
  • 2Faculty of Physics, Moscow State University, Moscow 119991, Russia
  • 3Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Galicia, Spain
  • 4Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
  • 5Mani L. Bhaumik Institute for Theoretical Physics, University of California, Los Angeles, California 90095, USA
  • 6LIP, Avenida Professor Gama Pinto, 2, P-1649-003 Lisboa, Portugal

  • *kuzmin.mv19@physics.msu.ru
  • †xoan.mayo.lopez@usc.es
  • ‡jdreiten@physics.ucla.edu
  • §andrey.sadofyev@usc.es
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Phys. Rev. D 109, 014036 – Published 29 January, 2024

DOI: https://doi.org/10.1103/PhysRevD.109.014036

Abstract

We study the interplay between the flow and hydrodynamic gradients in jet quenching at first order in opacity. We find that the mixed flow-gradient contributions in jet quenching are enhanced by the medium length and survive in the eikonal limit, dominating over other medium evolution effects. The resulting modification to the jet quenching parameter and energy loss rate can be substantial, leading to ample phenomenological implications. We also compute the leading corrections to the jet broadening due to the flow velocity gradients and consider the leading gradient effects in the medium-induced branching for general kinematics, extending the recent considerations of jets in inhomogeneous media. These results can be straightforwardly coupled to matter simulations, providing new opportunities for jet tomography in heavy-ion collisions.

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Outline

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Phys. Rev. D 109, 014036– Published 29 January, 2024
  • Received 15 September 2023
  • Accepted 17 December 2023
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