Sirunyan, A.M.Tumasyan, A.Adam, W.Ambrogi, F.Asilar, E.Bergauer, T.Soares, M.S.2020-07-182020-07-1820191434-60441434-6052https://doi.org/10.1140/epjc/s10052-019-6774-8https://hdl.handle.net/11147/8556The exclusive photoproduction of Υ (nS) meson states from protons, γp→Υ(nS)p (with n = 1 , 2 , 3), is studied in ultraperipheral p Pb collisions at a centre-of-mass energy per nucleon pair of sNN=5.02TeV. The measurement is performed using the Υ (nS) → μ+μ- decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6nb-1. Differential cross sections as functions of the Υ (nS) transverse momentum squared pT2, and rapidity y, are presented. The Υ (1 S) photoproduction cross section is extracted in the rapidity range | y| < 2.2 , which corresponds to photon–proton centre-of-mass energies in the range 91<Wγp<826GeV. The data are compared to theoretical predictions based on perturbative quantum chromodynamics and to previous measurements. © 2019, CERN for the benefit of the CMS collaboration.eninfo:eu-repo/semantics/openAccessCmsPhotoproductionPpbUpcYArticle2-s2.0-8506349561310.1140/epjc/s10052-019-6774-810.1140/epjc/s10052-019-6774-8