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Article
Report number arXiv:1908.03099 ; CERN-EP-2019-150 ; LHCb-PAPER-2018-049
Title Measurement of ψ(2S) production cross-sections in proton-proton collisions at s=7 and 13 TeV
Related titleMeasurement of psi(2S) production cross-sections in proton-proton collisions at 7 and 13 TeV
Author(s) LHCb Collaboration  Показать всех 846 авторов
Publication 2020-02-28
Imprint 12 Aug 2019
Number of pages 23
Note All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2018-049.html
In: Eur. Phys. J. C 80 (2020) 185
DOI 10.1140/epjc/s10052-020-7638-y
Subject category Particle Physics - Experiment ; hep-ex
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; QCD ; quarkonium ; spectroscopy ; branching fraction ; heavy quark production
Abstract The cross-sections of ψ(2S) meson production in proton-proton collisions at s=13TeV are measured with a data sample collected by the LHCb detector corresponding to an integrated luminosity of 275pb1. The production cross-sections for prompt ψ(2S) mesons and those for ψ(2S) mesons from b-hadron decays (ψ(2S)fromb) are determined as functions of the transverse momentum, pT, and the rapidity, y, of the ψ(2S) meson in the kinematic range 2<pT<20GeV/c and 2.0<y<4.5. The production cross-sections integrated over this kinematic region are σ(prompt ψ(2S),13TeV)=1.430±0.005(stat)±0.099(syst)μb, σ(ψ(2S)fromb,13TeV)=0.426±0.002(stat)±0.030(syst)μb. A new measurement of ψ(2S) production cross-sections in pp collisions at s=7TeV is also performed using data collected in 2011, corresponding to an integrated luminosity of 614pb1.The integrated production cross-sections in the kinematic range 3.5<pT<14GeV/c and 2.0<y<4.5 are σ(prompt ψ(2S),7TeV)=0.471±0.001(stat)±0.025(syst)μb, σ(ψ(2S)fromb,7TeV)=0.126±0.001(stat)±0.008(syst)μb. All results show reasonable agreement with theoretical calculations.
Copyright/License publication: © 2019-2024 CERN (License: CC-BY-4.0)
preprint: © 2019-2024 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: nathalie.grub@cern.ch


 Запись создана 2019-08-12, последняя модификация 2024-10-02


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