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

Авторы: Бережной А.В., Горелов И.В., Лефлат А.К., Никитин Н.В., Саврина Д.В., Волков В.Ю., Жуков В.Ю., LHCb Collaboration
Журнал: Journal of High Energy Physics
Том: 2018
Номер: 7
Год издания: 2018
Издательство: IOP Publishing
Местоположение издательства: [Bristol, UK], England
DOI: 10.1007/jhep07(2018)134
Аннотация: he 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.
Добавил в систему: Бережной Александр Викторович

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