Event-by-Event Particle Ratio Fluctuations at LHC Energies

A Monte Carlo study of identified particle ratio fluctuations at LHC energies is carried out in the framework HIJING model using fluctuation variable ν dyn . The simulated events for Pb-Pb collisions id="M2"> s N = 2.76 and 5.02 TeV Xe-Xe id="M3"> 5.44 TeV are analyzed. From this study, it observed that values id="M4"> π , K , id="M5"> p id="M6"> follow similar trends energy dependence as most central collision data by NA49, STAR, ALICE experiments. It also id="M7"> all three combinations particles semicentral collisions, predicted id="M8"> A B id="M9"> agree fairly well with those experiment. For peripheral however, id="M10"> somewhat smaller, whereas id="M11"> id="M12"> predicts larger compared to corresponding experimental values. possible reasons differences discussed. id="M13"> scaled charged density when plotted against id="M14"> open="〈" close="〉"> part exhibit a flat behaviour, expected from independent emission sources. id="M15"> id="M16"> combinations, departure trend is, case low id="M17"> T window effect jet quenching or resonances considered. Furthermore, id="M18"> on various systems (including proton-proton collisions) suggests id="M19"> given pair simply function density, irrespective system size, beam energy, centrality.