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arXiv · 2209.15065

Collectivity in ultra-peripheral heavy-ion collisions

Chun Shen·Wenbin Zhao·Björn Schenke
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Abstract

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. By extrapolating from asymmetric p+Pb collisions, we simulate a quasi-real photon $\gamma^*$ 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 $\gamma^*$+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.

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Chun Shen, Wenbin Zhao, Björn Schenke. 2022-09-29. Collectivity in ultra-peripheral heavy-ion collisions. https://doi.org/10.1051/epjconf/202327601002

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