Measurement of forward J/ψ production cross-sections in pp collisions at √s=13 TeV
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Abstract
The production of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of √s=13 TeV is studied with the LHCb detector. Cross-section measurements are performed as a function of the transverse momentum p T and the rapidity y of the J/ψ meson in the region p T < 14 GeV/c and 2.0 < y < 4.5, for both prompt J/ψ mesons and J/ψ mesons from b-hadron decays. The production cross-sections integrated over the kinematic coverage are 15.30 ± 0.03 ± 0.86 μb for prompt J/ψ and 2.34 ± 0.01 ± 0.13 μb for J/ψ from b-hadron decays, assuming zero polarization of the J/ψ meson. The first uncertainties are statistical and the second systematic. The cross-section reported for J/ψ mesons from b-hadron decays is used to extrapolate to a total bb cross-section. The ratios of the cross-sections with respect to √s=8 TeV are also determined
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Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of forward J/ψ production cross-sections in pp collisions at √s=13 TeV. J. High Energ. Phys. 2015, 172 (2015). https://doi.org/10.1007/JHEP10(2015)172
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© CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made