• Open Access

Predicting parton energy loss in small collision systems

Alexander Huss, Aleksi Kurkela, Aleksas Mazeliauskas, Risto Paatelainen, Wilke van der Schee, and Urs Achim Wiedemann
Phys. Rev. C 103, 054903 – Published 11 May 2021

Abstract

Medium induced parton energy loss is not conclusively established either in very peripheral heavy-ion collisions or in proton-ion collisions. However, the standard interpretation of azimuthal momentum anisotropies in these systems implies some partonic rescattering. The upcoming light-ion runs at the Large Hadron Collider (LHC) provide a unique opportunity to search for parton energy loss in different systems of similar size. Here, we make predictions for the expected parton energy loss signal in the charged hadron spectra in a system size scan at LHC. We test a large set of model assumptions against the transverse momentum and centrality dependence of the charged hadron nuclear modification factor in lead-lead and xenon-xenon collisions at the LHC. We then attempt to make a model agnostic prediction for the charged hadron nuclear modification factor in oxygen-oxygen collisions.

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  • Received 12 August 2020
  • Accepted 29 September 2020

DOI:https://doi.org/10.1103/PhysRevC.103.054903

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Alexander Huss1,*, Aleksi Kurkela1,2,†, Aleksas Mazeliauskas1,‡, Risto Paatelainen1,§, Wilke van der Schee1,∥, and Urs Achim Wiedemann1,¶

  • 1Theoretical Physics Department, CERN, CH-1211 Genève 23, Switzerland
  • 2Faculty of Science and Technology, University of Stavanger, 4036 Stavanger, Norway

  • *alexander.huss@cern.ch
  • a.k@cern.ch
  • aleksas.mazeliauskas@cern.ch
  • §risto.sakari.paatelainen@cern.ch
  • wilke.van.der.schee@cern.ch
  • urs.wiedemann@cern.ch

See Also

Discovering Partonic Rescattering in Light Nucleus Collisions

Alexander Huss, Aleksi Kurkela, Aleksas Mazeliauskas, Risto Paatelainen, Wilke van der Schee, and Urs Achim Wiedemann
Phys. Rev. Lett. 126, 192301 (2021)

Article Text

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Issue

Vol. 103, Iss. 5 — May 2021

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