| Issue |
EPJ Web Conf.
Volume 364, 2026
XXXI International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions “Quark Matter 2025”
|
|
|---|---|---|
| Article Number | 09007 | |
| Number of page(s) | 4 | |
| Section | Initial State of Hadronic and Electron-Ion Collisions & Nuclear Structure | |
| DOI | https://doi.org/10.1051/epjconf/202636409007 | |
| Published online | 17 April 2026 | |
https://doi.org/10.1051/epjconf/202636409007
Characterizing the initial state and dynamical evolution in Xe-Xe and Pb-Pb collisions using multiparticle cumulants
Indian Institute of Technology Madras, Chennai, India
Published online: 17 April 2026
Abstract
Xenon-xenon (Xe-Xe) collisions at a center-of-mass energy per nucleon pair √sNN = 5.44 TeV provide a unique probe of nuclear deformation at the Large Hadron Collider (LHC). By comparing with lead-lead (Pb–Pb) collisions at √sNN = 5.36 TeV, the dependence of flow harmonics (vn) on system size and initial geometry is studied. For the first time, correlations between multiple flow harmonics (v2, v3, and v4) using higher-order mixed harmonic cumulants are measured and compared across centrality classes between Xe-Xe and Pb-Pb collisions. The results, obtained with charged particles in |η| < 2.4 and 0.5 < pT < 3.0 GeV/c, are compared to theoretical models, offering constraints on Xe deformation and insights into the quark-gluon plasma (QGP) evolution.
© The Authors, published by EDP Sciences, 2026
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