Measurement of the relative prompt production rate of χ[subscript c2] and χ[subscript c1] in pp collisions at √s = 7TeV
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Measurement of the relative.pdf
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Author(s)
Apyan, Aram
Bauer, Gerry P
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Chan, M.
Dutta, Valentina
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Alternative Title
Measurement of the relative prompt production rate of χc2 and χc1 in pp collisions at √s = 7TeV
Date Issued
November 2012
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
The CMS Collaboration et al. “Measurement of the Relative Prompt Production Rate of χ[subscript c2] and χ[subscript c1] in Pp Collisions at √s = 7 TeV.” The European Physical Journal C 72.12 (2012): n. pag. © 2012 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
A measurement is presented of the relative prompt production rate of χ[subscript c2] and χ[subscript c1] with 4.6 fb[superscript −1] of data collected by the CMS experiment at the LHC in pp collisions at √s = 7 TeV. The two states are measured via their radiative decays χc → J/ψ + γ , with the photon converting into an e+e− pair for J/ψ rapidity |y(J/ψ)| < 1.0 and photon transverse momentum pT(γ) > 0.5 GeV/c. The measurement is
given for six intervals of pT(J/ψ) between 7 and 25 GeV/c. The results are compared to theoretical predictions.
given for six intervals of pT(J/ψ) between 7 and 25 GeV/c. The results are compared to theoretical predictions.
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/10.1140/epjc/s10052-012-2251-3
