Abstract
The production fractions of and hadrons, normalized to the sum of and fractions, are measured in 13 TeV collisions using data collected by the LHCb experiment, corresponding to an integrated luminosity of . These ratios, averaged over the hadron transverse momenta from 4 to 25 GeV and pseudorapidity from 2 to 5, are for , and for , where the uncertainties arise from both statistical and systematic sources. The ratio depends strongly on transverse momentum, while the ratio shows a mild dependence. Neither ratio shows variations with pseudorapidity. The measurements are made using semileptonic decays to minimize theoretical uncertainties. In addition, the ratio of to mesons produced in the sum of and semileptonic decays is determined as , where the uncertainties are statistical and systematic.
- Received 18 February 2019
DOI:https://doi.org/10.1103/PhysRevD.100.031102
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© 2019 CERN, for the LHCb Collaboration