{"title":"Neutral Meson and Direct Photon Measurements with ALICE at the LHC","authors":"D. A. Averyanov","doi":"10.1134/S1063778825602276","DOIUrl":null,"url":null,"abstract":"<p>The ALICE experiment at the LHC is dedicated to the study of the hot and dense medium produced in ultrarelativistic heavy-ion collisions. Direct photons provide an excellent tool for testing QCD predictions, and serve as a valuable source of information about thermodynamic properties of the hot matter created in nucleus–nucleus collisions. Electromagnetic decays of neutral mesons produce dominant background for the direct photon and dielectron studies and should be measured with high accuracy. Furthermore, spectra of light neutral mesons provide excellent possibility to probe with high precision the parton structure of colliding nucleons and parton energy loss in hot medium. We report recent results from ALICE on the direct photon and neutral meson measurements in <span>\\(pp\\)</span>, <span>\\(p\\)</span>–Pb and Pb–Pb collisions at several energies together with the model calculations.</p>","PeriodicalId":728,"journal":{"name":"Physics of Atomic Nuclei","volume":"88 3","pages":"S292 - S299"},"PeriodicalIF":0.5000,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Atomic Nuclei","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063778825602276","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
The ALICE experiment at the LHC is dedicated to the study of the hot and dense medium produced in ultrarelativistic heavy-ion collisions. Direct photons provide an excellent tool for testing QCD predictions, and serve as a valuable source of information about thermodynamic properties of the hot matter created in nucleus–nucleus collisions. Electromagnetic decays of neutral mesons produce dominant background for the direct photon and dielectron studies and should be measured with high accuracy. Furthermore, spectra of light neutral mesons provide excellent possibility to probe with high precision the parton structure of colliding nucleons and parton energy loss in hot medium. We report recent results from ALICE on the direct photon and neutral meson measurements in \(pp\), \(p\)–Pb and Pb–Pb collisions at several energies together with the model calculations.
期刊介绍：
Physics of Atomic Nuclei is a journal that covers experimental and theoretical studies of nuclear physics: nuclear structure, spectra, and properties; radiation, fission, and nuclear reactions induced by photons, leptons, hadrons, and nuclei; fundamental interactions and symmetries; hadrons (with light, strange, charm, and bottom quarks); particle collisions at high and superhigh energies; gauge and unified quantum field theories, quark models, supersymmetry and supergravity, astrophysics and cosmology.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
