LHCb CollaborationAdeva Andany, BernardoBoente García, ÓscarBorsato, MartinoChobanova, VeronikaCid Vidal, XabierDosil Suárez, ÁlvaroFernández Prieto, AntonioGarcía Plana, BeatrizGarcía Pardiñas, JuliánLucio Martínez, MiriamMartínez Santos, DiegoPlo Casasus, MáximoPrisciandaro, James J.Ramos Pernas, MiguelRomero Vidal, AntonioSaborido Silva, Juan JoséSanmartín Sedes, BraisSantamarina Ríos, CibránVázquez Regueiro, PabloVieites Díaz, María2020-05-142020-05-142018Aaij, R., Adeva, B., Adinolfi, M. et al. Central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at √s=13 TeV. J. High Energ. Phys. 2018, 167 (2018). https://doi.org/10.1007/JHEP10(2018)1671029-8479http://hdl.handle.net/10347/22302Measurements are reported of the central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at a centre-of-mass energy of 13 TeV. Backgrounds are significantly reduced compared to previous measurements made at lower energies through the use of new forward shower counters. The products of the cross-sections and the branching fractions for the decays to dimuons, where both muons are within the pseudorapidity range 2.0 < η < 4.5, are measured to be σJ/ψ→μ+μ−=435±18±11±17 pbσψ(2S)→μ+μ−=11.1±1.1±0.3±0.4 pb. The first uncertainties are statistical, the second are systematic, and the third are due to the luminosity determination. The cross-sections are also measured differentially for meson rapidities between 2.0 and 4.5. Good agreement is observed with theoretical predictions. Photoproduction cross-sections are derived and compared to previous experiments, and a deviation from a pure power-law extrapolation of lower energy data is observed.eng© CERN, for the bene t of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.https://creativecommons.org/licenses/by/4.0/Charm physicsForward physicsHadron-Hadron scattering (experiments)Particle and resonance productionQuarkoniumjournal article10.1007/JHEP10(2018)167open access