Modeling net-charge fluctuations in heavy-ion collisions at the LHC  

作　　者：G.O.Ambaryan A.S.Chernyshov G.Kh.Eyyubova V.L.Korotkikh I.P.Lokhtin S.V.Petrushanko A.M.Snigirev E.E.Zabrodin 

机构地区：[1]Physics Department,Lomonosov Moscow State University,RU-119991 Moscow,Russia [2]Skobeltsyn Institute of Nuclear Physics,Lomonosov Moscow State University,RU-119991 Moscow,Russia [3]Bogoliubov Laboratory of Theoretical Physics,Joint Institute for Nuclear Research,RU-141980 Dubna,Russia [4]Department of Physics,University of Oslo,N-0316 Oslo,Norway

出　　处：《Chinese Physics C》2025年第1期281-289,共9页中国物理C(英文版)

基　　金：supported by the BASIS Foundation(23-2-10-2-1)。

摘　　要：Analysis of Pb+Pb data for net-charge fluctuations at LHC energies using the HYDJET++model is presented.The strongly intensive quantities D and Σ were used to remove the effects related to system volume fluctuations.We employed two versions of HYDJET++for the analysis.The first one is the standard or default version,whereas the second one is a modification that takes into account explicit event-by-event conservation of the electric net-charge of produced particles.The inclusion of the canonical net-charge conservation in the model allows for better description of the experimental data obtained by the ALICE and CMS Collaborations.A comparison with calculations from other models is also presented.

关 键 词：relativistic heavy-ion collisions net-charge fluctuations strongly intensive variables canonical charge conservation 

分 类 号：O571.6[理学—粒子物理与原子核物理]