{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.64378.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1303903"}},{"@id":"https://doi.org/10.1103/PhysRevLett.113.232504","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2014","description":"CERN-LHC.  We present the first measurement at the LHC of exclusive J/PSI photoproduction off protons, in ultra-peripheral proton-lead collisions at sqrt(sNN) = 5.02 TeV. Events are selected with a dimuon pair produced either in the rapidity interval, in the laboratory frame, 2.5 < YRAP < 4 (p-Pb) or -3.6 < y < -2.6 (Pb-p), and no other particles observed in the ALICE acceptance. The data set used in this analysis corresponds to an integrated luminosity of 3.9 nb^{-1} +- 3.2% (syst) for p-Pb collisions and 4.5 nb^{-1} +- 3.0% (syst) for Pb-p collisions. \n\nThe measured cross sections SIGMA(GAMMA P --> J/PSI P) are 33.2 +- 2.2 (stat) +- 3.1 (syst) +- 0.7 (theo) nb in p-Pb and 284 +- 36 (stat) +27,-32 (syst) +- 26 (theo) nb in Pb-p collisions. We measure this process up to about 700 GeV in the GAMMA-P centre-of-mass, which is a factor of two larger than the highest energy studied at HERA. The cross section as a function of the GAMMA-P centre of mass, W(GAMMA P), and the differential cross section as a function of rapidity are also presented along with the product of the photon energy, K, and the photon flux, DN/DK.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.64378.v1/t1","@type":"Dataset","description":"Differential cross sections as a function of rapidity for exclusive J/PSI photoproduction off protons in ultra-peripheral p-Pb collisions. The corresponding...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.64378.v1/t2","@type":"Dataset","description":"Differential cross section as a function of rapidity for exclusive J/PSI photoproduction off protons in ultra-peripheral Pb-p collisions. The corresponding...","name":"Table 2"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1303903?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/64378"}],"inLanguage":"en","name":"Exclusive $\\mathrm{J/}\\psi$ photoproduction off protons in ultra-peripheral p-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/ins1303903?version=1","version":1}