{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.88395.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1664312"}},{"@id":"https://doi.org/10.1103/PhysRevC.99.024912","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2019","description":"CERN-LHC. Measurements of inclusive and direct photon production at mid-rapidity in pp collisions at $\\sqrt{s}=2.76$ and 8 TeV are presented by the ALICE experiment at the LHC. The results are reported in transverse momentum ranges of $0.4<p_{\\rm T}<10$ GeV/c and $0.3<p_{\\rm T}<16$ GeV/c, respectively. Photons are detected with the electromagnetic calorimeter (EMCal) and via reconstruction of $e^+e^-$ pairs from conversions in the ALICE detector material using the central tracking system. For the final measurement of the inclusive photon spectra the results are combined in the overlapping $p_{\\rm T}$ interval of both methods. Direct photon spectra, or their upper limits at 90% C.L. are extracted using the direct photon excess ratio $R_\\gamma$, which quantifies the ratio of inclusive photons over decay photons generated with a decay-photon simulation. An additional hybrid method, combining photons reconstructed from conversions with those identified in the EMCal, is used for the combination of the direct photon excess ratio $R_\\gamma$, as well as the extraction of direct photon spectra or their upper limits. While no significant signal of direct photons is seen over the full $p_{\\rm T}$ range, $R_\\gamma$ for $p_{\\rm T}>7$ GeV/c is at least one $\\sigma$ above unity and consistent with expectations from next-to-leading order pQCD calculations.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t1","@type":"Dataset","description":"Double Ratio RGAMMA in inelastic pp collisions at center-of-mass energy 2.76 TeV. RGAMMA is the ratio of inclusive GAMMA to...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t2","@type":"Dataset","description":"Double Ratio RGAMMA in inelastic pp collisions at center-of-mass energy 8 TeV. RGAMMA is the ratio of inclusive GAMMA to...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t3","@type":"Dataset","description":"Invariant differential cross section of inclusive GAMMA produced in inelastic pp collisions at center-of-mass energy 2.76 TeV, the uncertainty of...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t4","@type":"Dataset","description":"Invariant differential cross section of inclusive GAMMA produced in inelastic pp collisions at center-of-mass energy 8 TeV, the uncertainty of...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t5","@type":"Dataset","description":"Invariant differential cross section of direct GAMMA produced in inelastic pp collisions at center-of-mass energy 2.76 TeV, the uncertainty of...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t6","@type":"Dataset","description":"Invariant differential cross section of direct GAMMA produced in inelastic pp collisions at center-of-mass energy 8 TeV, the uncertainty of...","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t7","@type":"Dataset","description":"Invariant differential yield of inclusive GAMMA produced in inelastic pp collisions at center-of-mass energy 2.76 TeV. Values are given in...","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t8","@type":"Dataset","description":"Invariant differential yield of inclusive GAMMA produced in inelastic pp collisions at center-of-mass energy 8 TeV. Values are given in...","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t9","@type":"Dataset","description":"Invariant differential yield of direct GAMMA produced in inelastic pp collisions at center-of-mass energy 2.76 TeV. Values are given in...","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.88395.v1/t10","@type":"Dataset","description":"Invariant differential yield of direct GAMMA produced in inelastic pp collisions at center-of-mass energy 8 TeV. Values are given in...","name":"Table 10"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1664312?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/88395"}],"inLanguage":"en","name":"Direct photon production at low transverse momentum in proton-proton collisions at $\\mathbf{\\sqrt{s}=2.76}$ and 8 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1664312?version=1","version":1}