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Rapidity distributions in exclusive Z + jet and $\gamma$ + jet events in $pp$ collisions at $\sqrt{s}$ = 7 TeV

The CMS collaboration
Phys.Rev. D88 (2013) 112009, 2013

Abstract (data abstract)
CERN-LHC. Rapidity distributions are presented for events containing either a Z boson or a photon with a single jet in proton-proton collisions produced at the CERN LHC. The data, collected with the CMS detector at sqrt(s) = 7 TeV, correspond to an integrated luminosity of 5.0 fb^-1. The individual rapidity distributions of the boson and the jet are consistent within 5% with expectations from perturbative QCD. However, QCD predictions for the sum and the difference in rapidities of the two final-state objects show discrepancies with CMS data. In particular, next-to-leading-order QCD calculations, and two common Monte Carlo event generators using different methods to match matrix-element partons with parton showers, appear inconsistent with the data as well as with each other.

  • Table 1

    Data from Figure 1a

    10.17182/hepdata.65267.v1/t1

    Distributions of |YZ| normalized to unity. The data are shown after correcting for efficiency and resolution, and displayed with statistical...

  • Table 2

    Data from Figure 1b

    10.17182/hepdata.65267.v1/t2

    Distributions of |YJet| normalized to unity. The data are shown after correcting for efficiency and resolution, and displayed with statistical...

  • Table 3

    Data from Figure 1c

    10.17182/hepdata.65267.v1/t3

    Distributions of 0.5*|YZ+YJet| normalized to unity. The data are shown after correcting for efficiency and resolution, and displayed with statistical...

  • Table 4

    Data from Figure 1d

    10.17182/hepdata.65267.v1/t4

    Distributions of 0.5*|YZ-YJet| normalized to unity. The data are shown after correcting for efficiency and resolution, and displayed with statistical...

  • Table 5

    Data from Figure 2a

    10.17182/hepdata.65267.v1/t5

    Distributions of |YPho| normalized to unity. The data are shown after correcting for efficiency and resolution, and displayed with statistical...

  • Table 6

    Data from Figure 2b

    10.17182/hepdata.65267.v1/t6

    Distributions of |YJet| normalized to unity. The data are shown after correcting for efficiency and resolution, and displayed with statistical...

  • Table 7

    Data from Figure 2c

    10.17182/hepdata.65267.v1/t7

    Distributions of 0.5*|YPho+YJet| normalized to unity. The data are shown after correcting for efficiency and resolution, and displayed with statistical...

  • Table 8

    Data from Figure 2d

    10.17182/hepdata.65267.v1/t8

    Distributions of 0.5*|YPho-YJet| normalized to unity. The data are shown after correcting for efficiency and resolution, and displayed with statistical...

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