https://doi.org/10.1051/epjconf/202327601002
Collectivity in ultra-peripheral heavy-ion collisions
1
Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA
2
RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, NY 11973, USA
3
Physics Department, Brookhaven National Laboratory, Upton, NY 11973, USA
* e-mail: chunshen@wayne.edu
Published online: 1 March 2023
We present full (3+1 )D dynamical simulations to study collective behavior in ultra-peripheral nucleus-nucleus collisions (UPC) at the Large Hadron Collider (LHC) with the 3DGlauber+MUSIC+UrQMD framework [1, 2]. By extrapolating from asymmetric p+Pb collisions, we simulate a quasi-real photon γ* interacting with the Pb nucleus in an ultra-peripheral collision at the LHC, assuming strong final-state effects. We study the elliptic flow hierarchy between p+Pb and γ*+Pb collisions, which is dominated by the difference in longitudinal flow decorrelations. Our theoretical framework provides a quantitative tool to study collectivity in small asymmetric collision systems at current and future collider experiments.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).