Measurement of the $W \to \ell\nu$ and $Z/\gamma^* \to \ell\ell$ production cross sections in proton-proton collisions at $\sqrt{s} = 7$ TeV with the ATLAS detector

The ATLAS collaboration
JHEP 1012 (2010) 060, 2010

Abstract (data abstract)
First measurements of the W -> lnu and Z/gamma* -> ll (l = e, mu) production cross sections in proton-proton collisions at sqrt(s) = 7 TeV are presented using data recorded by the ATLAS experiment at the LHC. The results are based on 2250 W -> lnu and 179 Z/gamma* -> ll candidate events selected from a data set corresponding to an integrated luminosity of approximately 320 nb-1. The measured total W and Z/gamma*-boson production cross sections times the respective leptonic branching ratios for the combined electron and muon channels are sigma_W^tot * BR(W -> lnu) = 9.96 +- 0.23(stat) +- 0.50(syst) +- 1.10(lumi) nb and sigma_Z/gamma*^tot * BR(Z/gamma* -> ll) = 0.82 +- 0.06(stat) +- 0.05(syst) +- 0.09(lumi) nb (within the invariant mass window 66 < m_ll < 116 GeV). The W/Z cross-section ratio is measured to be 11.7 +- 0.9(stat) +- 0.4(syst). In addition, measurements of the W+ and W- production cross sections and of the lepton charge asymmetry are reported. Theoretical predictions based on NNLO QCD calculations are found to agree with the measurements. Numerical values supplied by M Vincter. UPDATE 06/04/2016: The tables detailing results on total cross sections had misleading phase space selections quoted, these are removed now.

  • Table 1

    Data from T 11

    10.17182/hepdata.56744.v1/t1

    Measured fiducial cross section times leptonic branching ratio for W+ production in the W+ -> e+ nu final state.

  • Table 2

    Data from T 11

    10.17182/hepdata.56744.v1/t2

    Measured fiducial cross section times leptonic branching ratio for W- production in the W- -> e- nubar final state.

  • Table 3

    Data from T 11

    10.17182/hepdata.56744.v1/t3

    Measured fiducial cross section times leptonic branching ratio for W+/- production in the combined W+ -> e+ nu and W-...

  • Table 4

    Data from T 11

    10.17182/hepdata.56744.v1/t4

    Measured fiducial cross section times leptonic branching ratio for Z/gamma* production in the Z/gamma* -> e+e- final state.

  • Table 5

    Data from T 11

    10.17182/hepdata.56744.v1/t5

    Measured fiducial cross section times leptonic branching ratio for W+ production in the W+ -> mu+ nu final state.

  • Table 6

    Data from T 11

    10.17182/hepdata.56744.v1/t6

    Measured fiducial cross section times leptonic branching ratio for W- production in the W- -> mu- nubar final state.

  • Table 7

    Data from T 11

    10.17182/hepdata.56744.v1/t7

    Measured fiducial cross section times leptonic branching ratio for W+/- production in the combined W+ -> mu+ nu and W-...

  • Table 8

    Data from T 11

    10.17182/hepdata.56744.v1/t8

    Measured fiducial cross section times leptonic branching ratio for Z/gamma* production in the Z/gamma* -> mu+ mu- final state.

  • Table 9

    Data from T 13,F 11

    10.17182/hepdata.56744.v1/t9

    Measured total cross section times leptonic branching ratio for W+ production in the W+ -> e+ nu final state.

  • Table 10

    Data from T 13,F 11

    10.17182/hepdata.56744.v1/t10

    Measured total cross section times leptonic branching ratio for W- production in the W- -> e- nubar final state.

  • Table 11

    Data from T 13,F 11

    10.17182/hepdata.56744.v1/t11

    Measured total cross section times leptonic branching ratio for W+/- production in the combined W+ -> e+ nu and W-...

  • Table 12

    Data from T 13,F 11

    10.17182/hepdata.56744.v1/t12

    Measured total cross section times leptonic branching ratio for Z/gamma* production in the Z/gamma* -> e+ e- final state.

  • Table 13

    Data from T 13,F 11

    10.17182/hepdata.56744.v1/t13

    Measured total cross section times leptonic branching ratio for W+ production in the W+ -> mu+ nu final state.

  • Table 14

    Data from T 13,F 11

    10.17182/hepdata.56744.v1/t14

    Measured total cross section times leptonic branching ratio for W- production in the W- -> mu- nubar final state.

  • Table 15

    Data from T 13,F 11

    10.17182/hepdata.56744.v1/t15

    Measured total cross section times leptonic branching ratio for W+/- production in the combined W+ -> mu+ nu and W-...

  • Table 16

    Data from T 13,F 11

    10.17182/hepdata.56744.v1/t16

    Measured total cross section times leptonic branching ratio for Z/gamma* production in the Z/gamma* -> mu+ mu- final state.

  • Table 17

    Data from P 25 (C=PREPRINT)

    10.17182/hepdata.56744.v1/t17

    Measured total cross section times leptonic branching ratio for W+ production in the W+ -> l+ nu (l = e,...

  • Table 18

    Data from P 25 (C=PREPRINT)

    10.17182/hepdata.56744.v1/t18

    Measured total cross section times leptonic branching ratio for W- production in the W- -> l- nubar (l = e,...

  • Table 19

    Data from P 26 (C=PREPRINT)

    10.17182/hepdata.56744.v1/t19

    Measured total cross section times leptonic branching ratio for W+/- production in the combined W+ -> l+ nu and W-...

  • Table 20

    Data from P 26 (C=PREPRINT)

    10.17182/hepdata.56744.v1/t20

    Measured total cross section times leptonic branching ratio for Z/gamma* production in the combined Z/gamma* -> l+ l- (l =...

  • Table 21

    Data from T 14,F 14

    10.17182/hepdata.56744.v1/t21

    Measured total cross-section ratio R_{W+/Z} = sigma (W+ -> e+ nu) / sigma (Z/gamma^* -> e+ e-).

  • Table 22

    Data from T 14,F 14

    10.17182/hepdata.56744.v1/t22

    Measured total cross-section ratio R_{W-/Z} = sigma (W- -> e- nubar) / sigma (Z/gamma^* -> e+ e-).

  • Table 23

    Data from T 14,F 14

    10.17182/hepdata.56744.v1/t23

    Measured total cross-section ratio R_{W+-/Z} = sigma (W+/- -> e+/- nu/nubar) / sigma (Z/gamma^* -> e+ e-).

  • Table 24

    Data from T 14,F 14

    10.17182/hepdata.56744.v1/t24

    Measured total cross-section ratio R_{W+/Z} = sigma (W+ -> mu+ nu) / sigma (Z/gamma^* -> mu+ mu-).

  • Table 25

    Data from T 14,F 14

    10.17182/hepdata.56744.v1/t25

    Measured total cross-section ratio R_{W-/Z} = sigma (W- -> mu- nubar) / sigma (Z/gamma^* -> mu+ mu-).

  • Table 26

    Data from T 14,F 14

    10.17182/hepdata.56744.v1/t26

    Measured total cross-section ratio R_{W+-/Z} = sigma (W+/- -> mu+/- nu/nubar) / sigma (Z/gamma^* -> mu+ mu-).

  • Table 27

    Data from P 28 (C=PREPRINT)

    10.17182/hepdata.56744.v1/t27

    Measured total cross-section ratio R_{W+/Z} = sigma (W+ -> l+ nu) / sigma (Z/gamma^* -> l+ l-) where (l =...

  • Table 28

    Data from P 28 (C=PREPRINT)

    10.17182/hepdata.56744.v1/t28

    Measured total cross-section ratio R_{W-/Z} = sigma (W- -> l- nubar) / sigma (Z/gamma^* -> l+ l-) where (l =...

  • Table 29

    Data from P 28 (C=PREPRINT)

    10.17182/hepdata.56744.v1/t29

    Measured total cross-section ratio R_{W+-/Z} = sigma (W+/- -> l+/- nu/nubar) / sigma (Z/gamma^* -> l+ l-) where (l =...

  • Table 30

    Data from T 15,F16

    10.17182/hepdata.56744.v1/t30

    Measured lepton asymmetry from W+ -> e+ nu and W- -> e- nubar, binned as a function pseudorapidity.

  • Table 31

    Data from T 15,F16

    10.17182/hepdata.56744.v1/t31

    Measured lepton asymmetry from W+ -> e+ nu and W- -> e- nubar.

  • Table 32

    Data from T 15,F16

    10.17182/hepdata.56744.v1/t32

    Measured lepton asymmetry from W+ -> mu+ nu and W- -> mu- nubar, binned as a function pseudorapidity.

  • Table 33

    Data from T 15,F16

    10.17182/hepdata.56744.v1/t33

    Measured lepton asymmetry from W+ -> mu+ nu and W- -> mu- nubar.

  • Table 34

    Data from T 15,F16

    10.17182/hepdata.56744.v1/t34

    Measured lepton asymmetry from W+ -> l+ nu and W- -> l- nubar (l = e, mu), binned as a...

  • Table 35

    Data from T 15,F16

    10.17182/hepdata.56744.v1/t35

    Measured lepton asymmetry from W+ -> l+ nu and W- -> l- nubar (l = e, mu).

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