The production cross-sections of ϒ(1S), ϒ(2S) and ϒ(3S) mesons in proton-proton collisions at √s=13 TeV are measured with a data sample corresponding to an integrated luminosity of 277 ± 11 pb−1 recorded by the LHCb experiment in 2015. The ϒ mesons are reconstructed in the decay mode ϒ → μ+μ−. The differential production cross-sections times the dimuon branching fractions are measured as a function of the ϒ transverse momentum, pT, and rapidity, y, over the range 0 < pT< 30 GeV/c and 2.0 < y < 4.5. The ratios of the cross-sections with respect to the LHCb measurement at √s=8 TeV are also determined. The measurements are compared with theoretical predictions based on NRQCD.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2018). Measurement of ϒ production in pp collisions at √s=13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2018(7) [10.1007/JHEP07(2018)134].

Measurement of ϒ production in pp collisions at √s=13 TeV

Belloli, N.;Borsato, M.;Calvi, M.;Carniti, P.;Cassina, L.;Fazzini, D.;Gotti, C.;Martinelli, M.;Matteuzzi, C.;Petruzzo, M.;
2018

Abstract

The production cross-sections of ϒ(1S), ϒ(2S) and ϒ(3S) mesons in proton-proton collisions at √s=13 TeV are measured with a data sample corresponding to an integrated luminosity of 277 ± 11 pb−1 recorded by the LHCb experiment in 2015. The ϒ mesons are reconstructed in the decay mode ϒ → μ+μ−. The differential production cross-sections times the dimuon branching fractions are measured as a function of the ϒ transverse momentum, pT, and rapidity, y, over the range 0 < pT< 30 GeV/c and 2.0 < y < 4.5. The ratios of the cross-sections with respect to the LHCb measurement at √s=8 TeV are also determined. The measurements are compared with theoretical predictions based on NRQCD.
Articolo in rivista - Articolo scientifico
Hadron-Hadron scattering (experiments); QCD; Quarkonium; Nuclear and High Energy Physics
English
2018
2018
7
134
open
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2018). Measurement of ϒ production in pp collisions at √s=13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2018(7) [10.1007/JHEP07(2018)134].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/215467
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