{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.157542.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2831272"}},{"@id":"https://doi.org/10.1140/epjc/s10052-025-13971-y","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2025","description":"CERN-LHC. The ALICE Collaboration at the CERN LHC has measured the inclusive production cross section of isolated photons at midrapidity as a function of the photon transverse momentum ($p_\\mathrm{T}^{\\gamma}$), in Pb$-$Pb collisions in different centrality intervals, and in pp collisions, at centre-of-momentum energy per nucleon pair of $\\sqrt{s_{\\mathrm{NN}}}=5.02~\\mathrm{TeV}$. The photon transverse momentum range is between 10$-$14 and 40$-$140 GeV/$c$, depending on the collision system and on the Pb$-$Pb centrality class. The Pb$-$Pb collisions data is divided in the centrality classes 0--10%, 10$-$30%, 30$-$50%, 50$-$90%, 50$-$70%, and 70$-$90%. The result extends to lower $p_\\mathrm{T}^{\\gamma}$ than previously published results by the ATLAS and CMS experiments at the same collision energy. The covered pseudorapidity range is $|\\eta^{\\gamma}| <0.67$. The isolation selection is based on a charged particle isolation momentum threshold $p_\\mathrm{T}^{\\mathrm{iso,~ch}} = 1.5$ GeV/$c$ within a cone of radii $R=0.2$ and $0.4$. The nuclear modification factor is calculated and found to be consistent with unity in all centrality classes, and also consistent with the HG-PYTHIA model, which describes the event selection and geometry biases that affect the centrality determination in peripheral Pb$-$Pb collisions. The measurement is compared to next-to-leading order perturbative QCD calculations and to the measurements of isolated photons and Z$^{0}$ bosons from the CMS experiment, which are all found to be in agreement.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t1","@type":"Dataset","description":"Isolated-photon differential cross section measured in pp and Pb$-$Pb collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02~\\mathrm{TeV}$ for five Pb$-$Pb centrality classes for $R=0.2$. Note...","name":"table_1"},{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t2","@type":"Dataset","description":"Isolated-photon differential cross section measured in pp and Pb$-$Pb collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02~\\mathrm{TeV}$ for five Pb$-$Pb centrality classes for $R=0.4$. Note...","name":"table_2"},{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t3","@type":"Dataset","description":"Ratio of isolated-photon cross section measured with $R=0.4$ over $R=0.2$ for Pb$-$Pb and pp collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02~\\mathrm{TeV}$. Each column for...","name":"table_3"},{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t4","@type":"Dataset","description":"Isolated-photon cross section ratio of pp collisions at $\\sqrt{s}=13~\\mathrm{TeV}$ over $\\sqrt{s}=5.02~\\mathrm{TeV}$ in data (left column) and NLO pQCD calculation from...","name":"table_4"},{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t5","@type":"Dataset","description":"Isolated-photon cross section ratio of pp collisions at $\\sqrt{s}=7~\\mathrm{TeV}$ over $\\sqrt{s}=5.02~\\mathrm{TeV}$ in data (left column) and NLO pQCD calculation from...","name":"table_5"},{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t6","@type":"Dataset","description":"Nuclear modification factor ($R_{\\rm AA}$) of isolated photons for Pb$-$Pb and pp collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02~\\mathrm{TeV}$. $R_{\\rm AA}$ obtained with a...","name":"table_6"},{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t7","@type":"Dataset","description":"Nuclear modification factor ($R_{\\rm AA}$) of isolated photons for Pb$-$Pb and pp collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02~\\mathrm{TeV}$. $R_{\\rm AA}$ obtained with a...","name":"table_7"},{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t8","@type":"Dataset","description":"Ratios $R_{\\rm CSP}$ and $R_{\\rm CSC}$ of isolated photons cross sections in data for Pb$-$Pb collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02~\\mathrm{TeV}$. $R_{\\rm CSP}$,...","name":"table_8"},{"@id":"https://doi.org/10.17182/hepdata.157542.v1/t9","@type":"Dataset","description":"Ratios $R_{\\rm CSP}$ and $R_{\\rm CSC}$ of isolated photons cross sections in data for Pb$-$Pb collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02~\\mathrm{TeV}$. $R_{\\rm CSP}$,...","name":"table_9"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2831272?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/157542"}],"inLanguage":"en","name":"Measurement of the inclusive isolated-photon production cross section in pp and Pb$-$Pb collisions at $\\sqrt{s_{\\rm NN}}=5.02$ TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2831272?version=1","version":1}