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Measurement of the Zγ Production Cross Section in pp Collisions at 8 TeV and Search for Anomalous Triple Gauge Boson Couplings

The CMS collaboration
JHEP 1504 (2015) 164, 2015

Abstract (data abstract)
Measurement of the differential cross section for Zgamma production in proton-proton collisions at 8 TeV using a data sample of integrated luminosity of 19.5 fb-1 collected by the CMS experiment. The Z decay channels into muon and electron pairs are considered. The differential cross section as function of pT(gamma) is measured for a restricted phase space defined by: - |eta(l)| < 2.5, pT(l) > 20 GeV - Mass(ll) > 50 GeV - |eta(gamma)| < 2.5 - DeltaR(l, gamma) > 0.7 with l = muon,electron. In additon an isolation of less than 5 GeV in a cone of DeltaR = 0.3 around the photon is required. The cross section is measured inclusively and with a veto on jets where jets are reconstructed using the anti-kt algorithm with distance parameter DeltaR = 0.5. Only jets with pT > 30 GeV and |eta| < 2.4 are used for the veto. The cross sections are fully corrected for detector effects.

  • Table 1

    Data from Table 2

    10.17182/hepdata.66985.v1/t1

    Inclusive fiducial cross sections in bins of pT(gamma) with statistical, systematic, and luminosity uncertainties, respectivley. Results are not divided by...

  • Table 2

    Data from Table 3

    10.17182/hepdata.66985.v1/t2

    Fiducial cross sections with jet-veto in bins of pT(gamma) with statistical, systematic, and luminosity uncertainties, respectivley. Results are not divided...

  • Table 3

    Data from Figure 8

    10.17182/hepdata.66985.v1/t3

    Ratio of fiducial cross section with jet-veto and the inclusive cross section in bins of pT(gamma). The last bin is...

  • Table 4

    10.17182/hepdata.66985.v1/t4

    Fiducial cross sections for pT(gamma) > 15 GeV with statistical, systematic, and luminosity uncertainties, respectively. Combined result of electron and...

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