Measurement of the production cross section for W-bosons in association with jets in pp collisions at  sqrt[s] = 7 TeV with the ATLAS detector

G. Aad..[et al.]; Mogens Dam; John Renner Hansen; Jørgen Beck Hansen; Jørn Dines Hansen; Peter Henrik Hansen; Morten Dam Jørgensen; Esben Bryndt Klinkby; Troels Christian Petersen; Stefania Xella; Nele Maria Philomena Boelaert

doi:10.1016/j.physletb.2011.03.012

Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt[s] = 7 TeV with the ATLAS detector

G. Aad..[et al.], Mogens Dam, John Renner Hansen, Jørgen Beck Hansen, Jørn Dines Hansen, Peter Henrik Hansen, Morten Dam Jørgensen, Esben Bryndt Klinkby, Troels Christian Petersen, Stefania Xella, Nele Maria Philomena Boelaert

55 Citations (Scopus)

Abstract

This Letter reports on a first measurement of the inclusive W+jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross sections, in both the electron and muon decay modes of the W-boson, are presented as a function of jet multiplicity and of the transverse momentum of the leading and next-to-leading jets in the event. Measurements are also presented of the ratio of cross sections σ(W+≥n)/σ(W+≥n-1) for inclusive jet multiplicities n=1-4. The results, based on an integrated luminosity of 1.3 pb^-1, have been corrected for all known detector effects and are quoted in a limited and well-defined range of jet and lepton kinematics. The measured cross sections are compared to particle-level predictions based on perturbative QCD. Next-to-leading order calculations, studied here for n≤2, are found in good agreement with the data. Leading-order multiparton event generators, normalized to the NNLO total cross section, describe the data well for all measured jet multiplicities.

Original language	English
Journal	Physics Letters B
Volume	698
Issue number	5
Pages (from-to)	325-345
Number of pages	20
ISSN	0370-2693
DOIs	https://doi.org/10.1016/j.physletb.2011.03.012
Publication status	Published - 25 Apr 2011

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Aad..[et al.], G., Dam, M., Hansen, J. R., Hansen, J. B., Hansen, J. D., Hansen, P. H., Jørgensen, M. D., Klinkby, E. B., Petersen, T. C., Xella, S., & Boelaert, N. M. P. (2011). Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt[s] = 7 TeV with the ATLAS detector. Physics Letters B, 698(5), 325-345. https://doi.org/10.1016/j.physletb.2011.03.012

Aad..[et al.], G, Dam, M , Hansen, JR , Hansen, JB , Hansen, JD , Hansen, PH, Jørgensen, MD, Klinkby, EB, Petersen, TC , Xella, S & Boelaert, NMP 2011, 'Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt[s] = 7 TeV with the ATLAS detector', Physics Letters B, vol. 698, no. 5, pp. 325-345. https://doi.org/10.1016/j.physletb.2011.03.012

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title = "Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt[s] = 7 TeV with the ATLAS detector",

abstract = "This Letter reports on a first measurement of the inclusive W+jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross sections, in both the electron and muon decay modes of the W-boson, are presented as a function of jet multiplicity and of the transverse momentum of the leading and next-to-leading jets in the event. Measurements are also presented of the ratio of cross sections σ(W+≥n)/σ(W+≥n-1) for inclusive jet multiplicities n=1-4. The results, based on an integrated luminosity of 1.3 pb-1, have been corrected for all known detector effects and are quoted in a limited and well-defined range of jet and lepton kinematics. The measured cross sections are compared to particle-level predictions based on perturbative QCD. Next-to-leading order calculations, studied here for n≤2, are found in good agreement with the data. Leading-order multiparton event generators, normalized to the NNLO total cross section, describe the data well for all measured jet multiplicities.",

author = "{Aad..[et al.]}, G. and Mogens Dam and Hansen, {John Renner} and Hansen, {J{\o}rgen Beck} and Hansen, {J{\o}rn Dines} and Hansen, {Peter Henrik} and J{\o}rgensen, {Morten Dam} and Klinkby, {Esben Bryndt} and Petersen, {Troels Christian} and Stefania Xella and Boelaert, {Nele Maria Philomena}",

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T1 - Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt[s] = 7 TeV with the ATLAS detector

AU - Aad..[et al.], G.

AU - Dam, Mogens

AU - Hansen, John Renner

AU - Hansen, Jørgen Beck

AU - Hansen, Jørn Dines

AU - Hansen, Peter Henrik

AU - Jørgensen, Morten Dam

AU - Klinkby, Esben Bryndt

AU - Petersen, Troels Christian

AU - Xella, Stefania

AU - Boelaert, Nele Maria Philomena

PY - 2011/4/25

Y1 - 2011/4/25

N2 - This Letter reports on a first measurement of the inclusive W+jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross sections, in both the electron and muon decay modes of the W-boson, are presented as a function of jet multiplicity and of the transverse momentum of the leading and next-to-leading jets in the event. Measurements are also presented of the ratio of cross sections σ(W+≥n)/σ(W+≥n-1) for inclusive jet multiplicities n=1-4. The results, based on an integrated luminosity of 1.3 pb-1, have been corrected for all known detector effects and are quoted in a limited and well-defined range of jet and lepton kinematics. The measured cross sections are compared to particle-level predictions based on perturbative QCD. Next-to-leading order calculations, studied here for n≤2, are found in good agreement with the data. Leading-order multiparton event generators, normalized to the NNLO total cross section, describe the data well for all measured jet multiplicities.

AB - This Letter reports on a first measurement of the inclusive W+jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross sections, in both the electron and muon decay modes of the W-boson, are presented as a function of jet multiplicity and of the transverse momentum of the leading and next-to-leading jets in the event. Measurements are also presented of the ratio of cross sections σ(W+≥n)/σ(W+≥n-1) for inclusive jet multiplicities n=1-4. The results, based on an integrated luminosity of 1.3 pb-1, have been corrected for all known detector effects and are quoted in a limited and well-defined range of jet and lepton kinematics. The measured cross sections are compared to particle-level predictions based on perturbative QCD. Next-to-leading order calculations, studied here for n≤2, are found in good agreement with the data. Leading-order multiparton event generators, normalized to the NNLO total cross section, describe the data well for all measured jet multiplicities.

U2 - 10.1016/j.physletb.2011.03.012

DO - 10.1016/j.physletb.2011.03.012

M3 - Journal article

SN - 0370-2693

VL - 698

SP - 325

EP - 345

JO - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

JF - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

IS - 5

ER -

Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt[s] = 7 TeV with the ATLAS detector

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