Measurement of Quarkonium Production Cross Sections in Pp Collisions at √s = 13 TeV
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Author(s)
CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
Date Issued
March 2018
Journal
Physics Letters B
Publisher
Elsevier
Citation
Sirunyan, A.M. et al. “Measurement of Quarkonium Production Cross Sections in Pp Collisions at √s = 13 TeV.” Physics Letters B 780 (May 2018): 251–272 © 2018 The Author(s)
Version
Final published version
Abstract
Differential production cross sections of prompt J/ψ and ψ(2S) charmonium and ϒ(nS) (n=1,2,3) bottomonium states are measured in proton–proton collisions at √s = 13 TeV, with data collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 2.3 fb ⁻¹ for the J/ψ and 2.7 fb ⁻¹ for the other mesons. The five quarkonium states are reconstructed in the dimuon decay channel, for dimuon rapidity |y| < 1.2. The double-differential cross sections for each state are measured as a function of y and transverse momentum, and compared to theoretical expectations. In addition, ratios are presented of cross sections for prompt ψ(2S) to J/ψ ϒ(2S) to ϒ(1S), and ϒ(3S) to ϒ(1S) production. Keywords: CMS; Quarkonium; Cross sections
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2018.02.033
