Measurement of $Î¥$ production in $pp$ collisions at $\sqrt{s}$= 13 TeV
arXiv:1804.09214 · doi:10.1007/JHEP07(2018)134
Abstract
The production cross-sections of $Υ(1S)$, $Υ(2S)$ and $Υ(3S)$ mesons in proton-proton collisions at $\sqrt{s}$= 13 TeV are measured with a data sample corresponding to an integrated luminosity of $277 \pm 11$ $\rm pb^{-1}$ recorded by the LHCb experiment in 2015. The $Υ$ mesons are reconstructed in the decay mode $Υ\toμ^{+}μ^{-}$. The differential production cross-sections times the dimuon branching fractions are measured as a function of the $Υ$ transverse momentum, $p_{\rm T}$, and rapidity, $y$, over the range $0 < p_{\rm T}< 30$ GeV/c and $2.0 < y < 4.5$. The ratios of the cross-sections with respect to the LHCb measurement at $\sqrt{s}$= 8 TeV are also determined. The measurements are compared with theoretical predictions based on NRQCD.
All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2018-002.html