%0 Journal Article
%T Measurement of Υ production in pp collisions at √s=5 TeV
%A LHCb Collaboration (Aaij, R. et al
%A Jaimes Elles, S. J.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Rebollo De Miguel, M.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%A Sanderswood, I.
%J Journal of High Energy Physics
%D 2023
%V 07
%N 7
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2023
%O WOS:001062395900001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5774), last updated on Wed, 10 Apr 2024 12:42:53 +0000
%X The production cross-sections of Υ mesons, namely Υ(1S), Υ(2S) and Υ(3S), in pp collisions at root s = 5TeV are measured with a data sample corresponding to an integrated luminosity of 9.13 +/- 0.18 pb(-1) collected by the LHCb detector. The Υ mesons are reconstructed in the decay mode Υ -> mu(+)mu(-). Double differential cross-sections times branching fractions, as functions of the transverse momentum p(T) and the rapidity y of the Υ mesons, are measured in the range pT < 20 GeV/ c and 2.0 < y < 4.5. The results integrated over these pT and y ranges are sigma((sic)(1S)) x B((sic)(1S) -> mu(+) mu(-)) = 2101 +/- 33 +/- 83 pb, sigma((sic)(2S)) x B((sic)(2S) -> mu(+) mu(-)) = 526 +/- 20 +/- 21 pb, sigma((sic)(3S)) x B((sic)(3S) -> mu(+) mu(-)) = 242 +/- 16 +/- 10 pb, where the first uncertainties are statistical and the second are systematic. The ratios of cross-sections between measurements of two different (sic) states and between measurements at different centre-of-mass energies are determined. The nuclear modification factor of (sic)(1S) at root s = 5TeV is updated as well using the directly measured cross-section results from this analysis.
%K Hadron-Hadron Scattering
%K Heavy Quark Production
%K QCD
%K Quarkonium
%R 10.1007/JHEP07(2023)069
%U https://arxiv.org/abs/2212.12664
%U https://doi.org/10.1007/JHEP07(2023)069
%P 069-33pp