Confronting hydrodynamic predictions with Xe-Xe data

Author(s)

Giacalone, Giuliano ^[1] ; Noronha-Hostler, Jacquelyn ^[2] ; Luzum, Matthew ^[3] ; Ollitrault, Jean-Yves ^[1]

Affiliation

^[1] Univ Paris Saclay, CEA, CNRS, Inst Phys Theor, F-91191 Gif Sur Yvette - France

^[2] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 - USA

^[3] Univ Sao Paulo, Inst Fis, CP 66318, BR-05315970 Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: Nuclear Physics A; v. 982, p. 371-374, FEB 2019.
• Web of Science Citations: 1

Abstract

Comparing collision systems of different size, at near the same collision energy, offers us the opportunity to probe the scaling behavior and therefore the nature of the system itself. Recently, we made predictions for Xe-Xe collisions at 5.44 TeV using viscous hydrodynamic simulations, noting that the scaling from the larger Pb-Pb system is rather generic, and arguing that robust predictions can be made that do not depend on details of the model. Here we confront our predictions with measurements that were subsequently made in a short Xe-Xe run at the LHC by the ALICE, ATLAS, and CMS collaborations. We find that the predictions are largely confirmed. Of particular interest is a strong indication of a non-spherical shape for the Xe-129 nucleus. (AU)

• FAPESP's process: 17/05685-2 - Hadronic physics in high energy nuclear collisions
• Grantee: Jun Takahashi
• Support type: Research Projects - Thematic Grants
• FAPESP's process: 15/50438-8 - Observing the minibang through its fluctuation spectrum
• Grantee: Frédérique Marie Brigitte Sylvie Grassi
• Support type: Regular Research Grants
• FAPESP's process: 16/24029-6 - Investigating the strong nuclear interactions under extreme conditions
• Grantee: Matthew William Luzum
• Support type: Research Grants - Young Investigators Grants