{
  "id": "1809.11080",
  "version": "v1",
  "published": "2018-09-28T15:19:51.000Z",
  "updated": "2018-09-28T15:19:51.000Z",
  "title": "Measurement of exclusive $Υ$ photoproduction from protons in pPb collisions at $\\sqrt{s_\\mathrm{NN}} =$ 5.02 TeV",
  "authors": [
    "CMS Collaboration"
  ],
  "comment": "Submitted to EPJC. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/FSQ-13-009 (CMS Public Pages)",
  "categories": [
    "hep-ex"
  ],
  "abstract": "The exclusive photoproduction of $\\Upsilon$(nS) meson states from protons, $\\gamma$p $ \\to\\Upsilon$(nS)p (with n=1,2,3), is studied in ultraperipheral pPb collisions at a centre-of-mass energy per nucleon pair of $\\sqrt{s_\\mathrm{NN}} =$ 5.02 TeV. The measurement is performed using the $\\Upsilon$(nS)$\\to \\mu^+\\mu^-$ decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6 nb$^{-1}$. Differential cross sections as functions of the $\\Upsilon$(nS) transverse momentum squared $p_\\mathrm{T}^2$, and rapidity $y$, are presented. The $\\Upsilon$(1S) photoproduction cross section is extracted in the rapidity range $|y|< 2.2$, which corresponds to photon-proton centre-of-mass energies in the range $91<$W$_{\\gamma \\mathrm{p}}<$ 826 GeV. The data are compared to theoretical predictions based on perturbative quantum chromodynamics and to previous measurements.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-09-28T15:19:51.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "measurement",
      "centre-of-mass energy",
      "differential cross sections",
      "photoproduction cross section",
      "photon-proton centre-of-mass energies"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}