Measurement of $${\psi {(2S)}} $$ψ(2S) production cross-sections in proton-proton collisions at $$\sqrt{s} =7$$s=7 and $$13\text { TeV} $$13TeV



Aaij, R, Beteta, C Abellán, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F
et al (show 836 more authors) (2020) Measurement of $${\psi {(2S)}} $$ψ(2S) production cross-sections in proton-proton collisions at $$\sqrt{s} =7$$s=7 and $$13\text { TeV} $$13TeV The European Physical Journal C, 80 (3). 185-. ISSN 1434-6044, 1434-6052

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Abstract

The cross-sections of ψ(2 S) 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 275pb-1. The production cross-sections for prompt ψ(2 S) mesons and those for ψ(2 S) mesons from b-hadron decays (ψ(2S)-from-b) are determined as functions of the transverse momentum, p<inf>T</inf>, and the rapidity, y, of the ψ(2 S) 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(promptψ(2S),13TeV)=1.430±0.005(stat)±0.099(syst)μb,σ(ψ(2S)-from-b,13TeV)=0.426±0.002(stat)±0.030(syst)μb.A new measurement of ψ(2 S) production cross-sections in pp collisions at s=7TeV is also performed using data collected in 2011, corresponding to an integrated luminosity of 614pb-1. The integrated production cross-sections in the kinematic range 3.5<pT<14GeV/c and 2.0 < y< 4.5 are σ(promptψ(2S),7TeV)=0.471±0.001(stat)±0.025(syst)μb,σ(ψ(2S)-from-b,7TeV)=0.126±0.001(stat)±0.008(syst)μb.All results show reasonable agreement with theoretical calculations.

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 10 Mar 2020 10:18
Last Modified: 22 Jan 2026 08:19
DOI: 10.1140/epjc/s10052-020-7638-y
Open Access URL: https://doi.org/10.1140/epjc/s10052-020-7638-y
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3078458
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