Particle production at large p T in Xe+Xe collisions with jet quenching using the higher twist approach* *Supported by the Guangdong Major Project of Basic and Applied Basic Research (2020B0301030008) and the Natural Science Foundation of China with Project (11935007, 11805167)

Abstract

The production of , η, and ϕ in the most central (0%–5%) Xe+Xe collisions at = 5.44 TeV is investigated in the framework of the perturbative QCD (pQCD) improved parton model at an accuracy of next-to-leading order (NLO). The jet quenching effect is effectively incorporated by medium-modified fragmentation functions via the higher-twist approach. Predictions of the nuclear modification factors of , η, and ϕ as functions of the transverse momentum are made with the jet transport parameter , which is extracted from the available experimental data of charged hadrons provided by ALICE and CMS. The particle ratios as functions of in Xe+Xe collisions at = 5.44 TeV as well as in 0%–5% Pb + Pb collisions at = 5.02 TeV are also presented. The numerical simulations of the scaled ratios of charged hadron production in the Xe+Xe 5.44 TeV system over those in the Pb+Pb 5.02 TeV system give a good description of the CMS data, and the scaled ratios of , η, and ϕ production coincide with the curve of charged hadron production.