Abstract
The production of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of \( \sqrt{s}=13 \) 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 \( b\overline{b} \) cross-section. The ratios of the cross-sections with respect to \( \sqrt{s}=8 \) TeV are also determined.
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11 May 2017
An erratum to this article has been published.
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ArXiv ePrint: 1509.00771
Deceased (T. M. Karbach)
An erratum to this article is available at https://doi.org/10.1007/JHEP05(2017)063.
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The LHCb collaboration., Aaij, R., Adeva, B. et al. Measurement of forward J/ψ production cross-sections in pp collisions at \( \sqrt{s}=13 \) TeV. J. High Energ. Phys. 2015, 172 (2015). https://doi.org/10.1007/JHEP10(2015)172
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DOI: https://doi.org/10.1007/JHEP10(2015)172