Measurement of W� and Z-boson production cross sections in pp collisions at s=13�TeV with the ATLAS detector

The ATLAS Collaboration

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    Abstract

    Measurements of the W�→ℓ�ν and Z→ℓ+ production cross sections (where ℓ�=e��) in proton–proton collisions at s=13�TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb−1. The total inclusive W�-boson production cross sections times the single-lepton-flavour branching ratios are σW+ tot=11.83�0.02�(stat)�0.32�(sys)�0.25�(lumi)�nb and σW tot=8.79�0.02�(stat)�0.24�(sys)�0.18�(lumi)�nb for W+ and W, respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66<mℓℓ<116�GeV, is σZ tot=1.981�0.007�(stat)�0.038�(sys)�0.042�(lumi)�nb. The W+, W, and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σW+ fidW fid=1.295�0.003�(stat)�0.010�(sys) and σW� fidZ fid=10.31�0.04�(stat)�0.20�(sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements.

    Original languageEnglish
    Pages (from-to)601-621
    Number of pages21
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume759
    DOIs
    Publication statusPublished - 2016 Aug 10

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    bosons
    collisions
    detectors
    cross sections
    acceptability
    cancellation
    partons
    leptons
    quantum chromodynamics
    distribution functions
    luminosity
    predictions

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    @article{983d9616a9db43ae9d13c5fa7f01840a,
    title = "Measurement of W{\"i}¿½ and Z-boson production cross sections in pp collisions at s=13{\"i}¿½TeV with the ATLAS detector",
    abstract = "Measurements of the W{\"i}¿½→ℓ{\"i}¿½ν and Z→ℓ+ℓ− production cross sections (where ℓ{\"i}¿½=e{\"i}¿½,μ{\"i}¿½) in proton–proton collisions at s=13{\"i}¿½TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb−1. The total inclusive W{\"i}¿½-boson production cross sections times the single-lepton-flavour branching ratios are σW+ tot=11.83{\"i}¿½0.02{\"i}¿½(stat){\"i}¿½0.32{\"i}¿½(sys){\"i}¿½0.25{\"i}¿½(lumi){\"i}¿½nb and σW− tot=8.79{\"i}¿½0.02{\"i}¿½(stat){\"i}¿½0.24{\"i}¿½(sys){\"i}¿½0.18{\"i}¿½(lumi){\"i}¿½nb for W+ and W−, respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66ℓℓ<116{\"i}¿½GeV, is σZ tot=1.981{\"i}¿½0.007{\"i}¿½(stat){\"i}¿½0.038{\"i}¿½(sys){\"i}¿½0.042{\"i}¿½(lumi){\"i}¿½nb. The W+, W−, and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σW+ fid/σW− fid=1.295{\"i}¿½0.003{\"i}¿½(stat){\"i}¿½0.010{\"i}¿½(sys) and σW{\"i}¿½ fid/σZ fid=10.31{\"i}¿½0.04{\"i}¿½(stat){\"i}¿½0.20{\"i}¿½(sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements.",
    author = "{The ATLAS Collaboration} and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and B. Abeloos and R. Aben and AbouZeid, {O. S.} and Abraham, {N. L.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and J. Adelman and S. Adomeit and T. Adye and Affolder, {A. A.} and T. Agatonovic-Jovin and J. Agricola and Aguilar-Saavedra, {J. A.} and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and H. Akerstedt and {\"i}¿½kesson, {T. P.A.} and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and T. Alexopoulos and M. Alhroob and M. Aliev and G. Alimonti and J. Alison and Alkire, {S. P.} and Allbrooke, {B. M.M.} and Allen, {B. W.} and Allport, {P. P.} and A. Aloisio and A. Alonso and Takashi Mitani and Masahiro Morinaga and Kohei Yorita",
    year = "2016",
    month = "8",
    day = "10",
    doi = "10.1016/j.physletb.2016.06.023",
    language = "English",
    volume = "759",
    pages = "601--621",
    journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
    issn = "0370-2693",
    publisher = "Elsevier",

    }

    TY - JOUR

    T1 - Measurement of W� and Z-boson production cross sections in pp collisions at s=13�TeV with the ATLAS detector

    AU - The ATLAS Collaboration

    AU - Aad, G.

    AU - Abbott, B.

    AU - Abdallah, J.

    AU - Abdinov, O.

    AU - Abeloos, B.

    AU - Aben, R.

    AU - AbouZeid, O. S.

    AU - Abraham, N. L.

    AU - Abramowicz, H.

    AU - Abreu, H.

    AU - Abreu, R.

    AU - Abulaiti, Y.

    AU - Acharya, B. S.

    AU - Adamczyk, L.

    AU - Adams, D. L.

    AU - Adelman, J.

    AU - Adomeit, S.

    AU - Adye, T.

    AU - Affolder, A. A.

    AU - Agatonovic-Jovin, T.

    AU - Agricola, J.

    AU - Aguilar-Saavedra, J. A.

    AU - Ahlen, S. P.

    AU - Ahmadov, F.

    AU - Aielli, G.

    AU - Akerstedt, H.

    AU - �kesson, T. P.A.

    AU - Akimov, A. V.

    AU - Alberghi, G. L.

    AU - Albert, J.

    AU - Albrand, S.

    AU - Alconada Verzini, M. J.

    AU - Aleksa, M.

    AU - Aleksandrov, I. N.

    AU - Alexa, C.

    AU - Alexander, G.

    AU - Alexopoulos, T.

    AU - Alhroob, M.

    AU - Aliev, M.

    AU - Alimonti, G.

    AU - Alison, J.

    AU - Alkire, S. P.

    AU - Allbrooke, B. M.M.

    AU - Allen, B. W.

    AU - Allport, P. P.

    AU - Aloisio, A.

    AU - Alonso, A.

    AU - Mitani, Takashi

    AU - Morinaga, Masahiro

    AU - Yorita, Kohei

    PY - 2016/8/10

    Y1 - 2016/8/10

    N2 - Measurements of the W�→ℓ�ν and Z→ℓ+ℓ− production cross sections (where ℓ�=e�,μ�) in proton–proton collisions at s=13�TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb−1. The total inclusive W�-boson production cross sections times the single-lepton-flavour branching ratios are σW+ tot=11.83�0.02�(stat)�0.32�(sys)�0.25�(lumi)�nb and σW− tot=8.79�0.02�(stat)�0.24�(sys)�0.18�(lumi)�nb for W+ and W−, respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66ℓℓ<116�GeV, is σZ tot=1.981�0.007�(stat)�0.038�(sys)�0.042�(lumi)�nb. The W+, W−, and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σW+ fid/σW− fid=1.295�0.003�(stat)�0.010�(sys) and σW� fid/σZ fid=10.31�0.04�(stat)�0.20�(sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements.

    AB - Measurements of the W�→ℓ�ν and Z→ℓ+ℓ− production cross sections (where ℓ�=e�,μ�) in proton–proton collisions at s=13�TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb−1. The total inclusive W�-boson production cross sections times the single-lepton-flavour branching ratios are σW+ tot=11.83�0.02�(stat)�0.32�(sys)�0.25�(lumi)�nb and σW− tot=8.79�0.02�(stat)�0.24�(sys)�0.18�(lumi)�nb for W+ and W−, respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66ℓℓ<116�GeV, is σZ tot=1.981�0.007�(stat)�0.038�(sys)�0.042�(lumi)�nb. The W+, W−, and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σW+ fid/σW− fid=1.295�0.003�(stat)�0.010�(sys) and σW� fid/σZ fid=10.31�0.04�(stat)�0.20�(sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements.

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    UR - http://www.scopus.com/inward/citedby.url?scp=85042485876&partnerID=8YFLogxK

    U2 - 10.1016/j.physletb.2016.06.023

    DO - 10.1016/j.physletb.2016.06.023

    M3 - Article

    AN - SCOPUS:85042485876

    VL - 759

    SP - 601

    EP - 621

    JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

    JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

    SN - 0370-2693

    ER -