The production cross-sections of Υ mesons, namely Υ(1S), Υ(2S) and Υ(3S), in pp collisions at s = 5 TeV 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 → μ + μ −. 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 p T < 20 GeV/c and 2.0 < y < 4.5. The results integrated over these p T and y ranges are σ(Υ(1S))×B(Υ(1S)→μ+μ−)=2101±33±83pb,σ(Υ(2S))×B(Υ(2S)→μ+μ−)=526±20±21pb,σ(Υ(3S))×B(Υ(3S)→μ+μ−)=242±16±10pb, where the first uncertainties are statistical and the second are systematic. The ratios of cross-sections between measurements of two different Υ states and between measurements at different centre-of-mass energies are determined. The nuclear modification factor of Υ(1S) at s = 5 TeV is updated as well using the directly measured cross-section results from this analysis. [Figure not available: see fulltext.]

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of Υ production in pp collisions at √s = 5 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7) [10.1007/JHEP07(2023)069].

Measurement of Υ production in pp collisions at √s = 5 TeV

Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Kirsebom V. S.;Martinazzoli L.;Martinelli M.;Meloni S.;Minotti A.;Petruzzo M.;Pizzichemi M.;Salomoni M.;Shields E. B.;
2023

Abstract

The production cross-sections of Υ mesons, namely Υ(1S), Υ(2S) and Υ(3S), in pp collisions at s = 5 TeV 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 → μ + μ −. 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 p T < 20 GeV/c and 2.0 < y < 4.5. The results integrated over these p T and y ranges are σ(Υ(1S))×B(Υ(1S)→μ+μ−)=2101±33±83pb,σ(Υ(2S))×B(Υ(2S)→μ+μ−)=526±20±21pb,σ(Υ(3S))×B(Υ(3S)→μ+μ−)=242±16±10pb, where the first uncertainties are statistical and the second are systematic. The ratios of cross-sections between measurements of two different Υ states and between measurements at different centre-of-mass energies are determined. The nuclear modification factor of Υ(1S) at s = 5 TeV is updated as well using the directly measured cross-section results from this analysis. [Figure not available: see fulltext.]
Articolo in rivista - Articolo scientifico
Hadron-Hadron Scattering; Heavy Quark Production; QCD; Quarkonium;
English
7-lug-2023
2023
2023
7
69
none
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of Υ production in pp collisions at √s = 5 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7) [10.1007/JHEP07(2023)069].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/476951
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