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Measurement of differential cross sections and $W^+/W^-$ cross-section ratios for $W$ boson production in association with jets at $\sqrt{s}=8$ TeV with the ATLAS detector

The collaboration
JHEP 05 (2018) 077, 2018.

Abstract (data abstract)
CERN-LHC. This paper presents a measurement of the W boson production cross section and the W+/W- cross-section ratio, both in association with jets, in proton-proton collisions at sqrt(s) = 8 TeV with the ATLAS experiment at the Large Hadron Collider. The measurement is performed in final states containing one electron and missing transverse momentum using data corresponding to an integrated luminosity of 20.2 fb^-1. Differential cross sections for events with at least one or two jets are presented for a range of observables, including jet transverse momenta and rapidities, the scalar sum of transverse momenta of the visible particles in the event, and the transverse momentum of the W boson. For a subset of the observables, the differential cross sections of positively and negatively charged W bosons are measured separately. In the cross-section ratio of W+/W- the dominant systematic uncertainties cancel out, improving the measurement precision by up to a factor of nine. The observables and ratios selected for this paper provide valuable input for the up quark, down quark, and gluon parton distribution functions of the proton.

• #### Table 1

Data from Figure(s) 02a

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Cross section for the production of W bosons for different inclusive jet multiplicities.

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Statistical correlation between bins in data for the cross section for the production of W bosons for different inclusive jet...

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Data from Figure(s) 16a, 16b, 02b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 03a

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Differential cross section for the production of W bosons as a function of H T for events with N jets...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 17a, 17b, 03b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 04a

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Differential cross section for the production of W bosons as a function of the W pT for events with N...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 18a, 18b, 04b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 05a

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Differential cross section for the production of W bosons as a function of the leading jet pT for events with...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 19a, 19b, 05b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 06a

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Differential cross section for the production of W bosons as a function of the leading jet rapidity for events with...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 20a, 20b, 06b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 08a

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Differential cross section for the production of W bosons as a function of second leading jet pT for events with...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 08b

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Differential cross section for the production of W bosons as a function of second leading jet rapidity for events with...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 09a

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Differential cross section for the production of W bosons as a function of Δ Rjet1,jet2 for events with N jets...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 09b

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Differential cross section for the production of W bosons as a function of dijet invariant mass for events with N...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 10

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Cross section for the production of W bosons as a function of exclusive jet multiplicity.

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Statistical correlation between bins in data for the cross section for the production of W bosons as a function of...

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Data from Figure(s) 11a

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Differential cross section for the production of W bosons as a function of the H T for events with N...

• #### Table 37

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 25a, 25b, 11b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 12a

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Differential cross section for the production of W bosons as a function of the W pT for events with N...

• #### Table 42

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 26a, 26b, 12b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 13a

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Differential cross section for the production of W bosons as a function of the leading jet pT for events with...

• #### Table 47

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 27a, 27b, 13b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

• #### Table 49

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 14a

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Differential cross section for the production of W bosons as a function of the electron η for events with N...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 14c, 14d, 14b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

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Data from Figure(s) 15a

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Differential cross section for the production of W bosons as a function of the electron η for events with N...

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Statistical correlation between bins in data for the differential cross section for the production of W bosons as a function...

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Data from Figure(s) 15c, 15d, 15b

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Differential cross sections for the production of W+ bosons, W- bosons and the W+/W- cross section ratio as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W+ bosons as a function...

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Statistical correlation between bins in data for the differential cross sections for the production of W- bosons as a function...

• #### Table 61

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List of experimentally considered systematic uncertainties for the W+jets cross section measurement

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Non-perturbative corrections for the cross section for the production of W bosons for different inclusive jet multiplicities.

• #### Table 63

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Non-perturbative corrections for the differential cross sections for the production of W+ bosons and W- bosons as a function of...

• #### Table 64

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of H T for...

• #### Table 65

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Non-perturbative corrections for the differential cross sections for the production of W+ bosons and W- bosons as a function of...

• #### Table 66

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of the W pT...

• #### Table 67

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Non-perturbative corrections for the differential cross sections for the production of W+ bosons and W- bosons as a function of...

• #### Table 68

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of the leading jet...

• #### Table 69

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Non-perturbative corrections for the differential cross sections for the production of W+ bosons and W- bosons as a function of...

• #### Table 70

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of the leading jet...

• #### Table 71

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Non-perturbative corrections for the differential cross sections for the production of W+ bosons and W- bosons as a function of...

• #### Table 72

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of second leading jet...

• #### Table 73

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of second leading jet...

• #### Table 74

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of Δ Rjet1,jet2 for...

• #### Table 75

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of dijet invariant mass...

• #### Table 76

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Non-perturbative corrections for the cross section for the production of W bosons as a function of exclusive jet multiplicity.

• #### Table 77

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of the H T...

• #### Table 78

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Non-perturbative corrections for the differential cross sections for the production of W+ bosons and W- bosons as a function of...

• #### Table 79

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of the W pT...

• #### Table 80

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Non-perturbative corrections for the differential cross sections for the production of W+ bosons and W- bosons as a function of...

• #### Table 81

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Non-perturbative corrections for the differential cross section for the production of W bosons as a function of the leading jet...

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Non-perturbative corrections for the differential cross sections for the production of W+ bosons and W- bosons as a function of...

• #### Table 83

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NNLO/NLO k-factors determined with NNLO Njetti for the differential cross sections for the production of W+ bosons and W- bosons...

• #### Table 84

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NNLO/NLO k-factors determined with NNLO Njetti for the differential cross sections for the production of W+ bosons and W- bosons...

• #### Table 85

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NNLO/NLO k-factors determined with NNLO Njetti for the differential cross sections for the production of W+ bosons and W- bosons...

• #### Table 86

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NNLO/NLO k-factors determined with NNLO Njetti for the differential cross sections for the production of W+ bosons and W- bosons...

Version 2 modifications: * Corrected luminosity uncertainties in all data distributions, * Added previews of the paper plots * Removal of the final bin for the non-perturbative corrections and the NNLO/NLO k-factors for the W pT distribution for W+ and W- events (tables 67, 80, 84).