TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jaimes Elles, S. J.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Rebollo De Miguel, M.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanderswood, I.
PY  - 2023
DA  - 2023//
TI  - Measurement of Υ production in pp collisions at √s=5 TeV
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 069
EP  - 33pp
VL  - 07
IS  - 7
PB  - Springer
KW  - Hadron-Hadron Scattering
KW  - Heavy Quark Production
KW  - QCD
KW  - Quarkonium
AB  - 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.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2212.12664
UR  - https://doi.org/10.1007/JHEP07(2023)069
DO  - 10.1007/JHEP07(2023)069
LA  - English
N1  - WOS:001062395900001
ID  - LHCbCollaborationAaij_etal2023
ER  -