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

Published version
Peer-reviewed

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Authors

Aaij, R. 
Adeva, B. 
Adinolfi, M. 
Ajaltouni, Z. 
Akar, S. 

Abstract

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.

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Keywords

Regular Article - Experimental Physics, Quarkonium, Hadron-Hadron scattering (experiments), QCD

Journal Title

Journal of High Energy Physics

Conference Name

Journal ISSN

1029-8479

Volume Title

2018

Publisher

Springer Berlin Heidelberg