Speaker
Description
Energy-Energy Correlator (EEC) applications to Heavy-Ion Collisions have been the subject of copious studies in recent years, namely in the exploration of the Quark-Gluon Plasma (QGP). EECs have been originally proposed to display a clear-cut scale factorization between different QCD processes, such as perturbative and non-perturbative effects, making them particularly appealing for scale-differential heavy-ion studies. However, we show through several Monte Carlo simulation tools, including Pythia, Herwig and CoLBT-hydro, a global and non-trivial sensitivity of EECs to the different physics regimes, calling this factorization into question [1]. With experimental measurements of in-medium EECs multiplying in the past few years, we take new steps towards a comprehensive understanding of their multifactorial dependences in order to unlock their full potential as QGP probes.
[1] L. Apolinario, R. Kunnawalkam Elayavalli, N. O. Madureira, J.-X. Sheng, X.-N. Wang, and Z. Yang, Phys. Rev. D 112, 054018 (2025), arXiv:2502.11406 [hep-ph].
