Identifying weak critical fluctuations of intermittency in heavy-ion collisions with topological machine learning
Abstract
Large density fluctuations of conserved charges have been proposed as a promising signature for exploring the QCD critical point in heavy-ion collisions. These fluctuations are expected to exhibit a fractal or scale-invariant behavior, which can be probed by intermittency analysis. Recent high-energy experimental studies reveal that the signal of critical fluctuations related to intermittency is very weak and thus could be easily obscured by the overwhelming background particles in the data sample. Employing a point cloud neural network with topological machine learning, we can successfully classify weak signal events from background noise by the extracted distinct topological features, and accurately determine the intermittency index for weak signal event samples.
Keywords
Cite
@article{arxiv.2412.06151,
title = {Identifying weak critical fluctuations of intermittency in heavy-ion collisions with topological machine learning},
author = {Rui Wang and Chengrui Qiu and Chuan-Shen Hu and Zhiming Li and Yuanfang Wu},
journal= {arXiv preprint arXiv:2412.06151},
year = {2025}
}
Comments
11 pages, 6 figures,published version