Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV

The LHCb collaboration
Phys.Lett.B 718 (2012) 431-440, 2012.

Abstract (data abstract)
CERN-LHC. Measurement of the ratio of cross sections for prompt charmonium Chi_c to J/psi production in proton-proton interactions at a centre-of-mass energy of 7 TeV. The Chi_c mesons, from a data sample of integrated luminosity of 36 pb-1 collected during 2010, are indentified through their decay Chi_c -> J/psi -> mu^+ mu^- gamma covering the J/psi transverse momentum range 2-15 GeV and rapidity 2.0-4.5.

  • Table 1

    Data from T 4,F 3


    Ratio of cross sections for Chi_c to J/psi production in bins of J/psi transverse momentum over the J/psi rapidity range...

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