Study of particle correlations in heavy-ion collisions at the LHC

Particle correlations at high energies are used to explore a local space-time emission region. In relativistic heavy-ion physics, the Quark–Gluon Plasma (QGP) as an emitting source can be investigated using the method of particle correlations. Heavy-ion experiments at LHC were completed its programme from 2009 to 2018 and are entered its new data taking with experimental set-up upgrades starting in 2022. This document highlights the results analysed with the method of particle correlations at LHC and discusses the current understanding of the properties of the QCD matter achieved by LHC at the highest centre-of-mass energy ever.