{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.69286.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1377585"}},{"@id":"https://doi.org/10.1016/j.physletb.2015.07.069","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2015","description":"CERN-LHC. This Letter reports a measurement of the exclusive $\\gamma\\gamma\\rightarrow \\ell^+\\ell^- (\\ell=e,~\\mu)$ cross-section in proton-proton collisions at a centre-of-mass energy of $7~\\mathrm{TeV}$ by the ATLAS experiment at the LHC, based on an integrated luminosity of $4.6~\\mathrm{fb}^{-1}$. For the electron or muon pairs satisfying exclusive selection criteria, a fit to the dilepton acoplanarity distribution is used to extract the fiducial cross-sections. The cross-section in the electron channel is determined to be $\\sigma_{\\gamma\\gamma\\rightarrow e^+e^-}^{\\mathrm{excl.}} = 0.428~\\pm~0.035~(\\mathrm{stat.})~\\pm~0.018~(\\mathrm{syst.})~\\mathrm{pb}$ for a phase-space region with invariant mass of the electron pairs greater than $24~\\mathrm{GeV}$, in which both electrons have transverse momentum $p_\\mathrm{T}>12~\\mathrm{GeV}$ and pseudorapidity $|\\eta|<2.4$. For muon pairs with invariant mass greater than $20~\\mathrm{GeV}$, muons transverse momentum $p_\\mathrm{T}>10~\\mathrm{GeV}$ and pseudorapidity $|\\eta|<2.4$, the cross-section is determined to be $\\sigma_{\\gamma\\gamma\\rightarrow \\mu^+\\mu^- }^{\\mathrm{excl.}} = 0.628~\\pm~0.032~(\\mathrm{stat.}) ~\\pm~0.021~(\\mathrm{syst.})~\\mathrm{pb}$. When proton absorptive effects due to finite proton size are taken into account in the theory calculation, the measured cross-sections are found to be consistent with the prediction.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t1","@type":"Dataset","description":"Fiducial cross-section SIG for the exclusive e+ e- and mu+ mu- production.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t2","@type":"Dataset","description":"Ratios of the number of observed to the number of expected events based on the MC predictions (R) for the...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t3","@type":"Dataset","description":"Detector response matrix (PROB) for the acoplanarity variable (ACO) for e+ e- channel (empty bins are not reported).","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t4","@type":"Dataset","description":"Detector response matrix (PROB) for the acoplanarity variable (ACO) for mu+ mu- channel (empty bins are not reported).","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t5","@type":"Dataset","description":"Acoplanarity (ACO) distributions unfolded for detector resolution, and lepton pair trigger, reconstruction and identification efficiencies for e+ e- channel (empty...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t6","@type":"Dataset","description":"Acoplanarity (ACO) distributions unfolded for detector resolution, and lepton pair trigger, reconstruction and identification efficiencies for mu+ mu- channel (empty...","name":"Table 6"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t7","@type":"Dataset","description":"The lepton pair exclusive selection efficiency in the fiducial region for signal MC events as a function of M and...","name":"Table 7"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t8","@type":"Dataset","description":"The lepton pair exclusive selection efficiency in the fiducial region for signal MC events as a function of M and...","name":"Table 8"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t9","@type":"Dataset","description":"The lepton pair exclusive selection efficiency in the fiducial region for single-dissociative MC events as a function of M and...","name":"Table 9"},{"@id":"https://doi.org/10.17182/hepdata.69286.v1/t10","@type":"Dataset","description":"The lepton pair exclusive selection efficiency in the fiducial region for single-dissociative MC events as a function of M and...","name":"Table 10"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1377585?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/69286"}],"inLanguage":"en","name":"Measurement of exclusive $\\gamma\\gamma\\rightarrow \\ell^+\\ell^-$ production in proton-proton collisions at $\\sqrt{s} = 7$ TeV with the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1377585?version=1","version":1}