Measurements of electroweak W Â± Z boson pair production in association with two jets in pp collisions at s = 13 TeV with the ATLAS detector

Physics

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Experimental Particle Physics

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https://doi.org/10.1007/jhep06(2024)192
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Available under license: CC BY: Creative Commons Attribution 4.0 International License

Keywords

Vector Boson Production, Hadron-Hadron Scattering, Proton-Proton Scattering, Beyond Standard Model

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Measurements of electroweak W Â± Z boson pair production in association with two jets in pp collisions at s = 13 TeV with the ATLAS detector. / The ATLAS collaboration ; Alsolami, Zainab ; Sampson, Elliot.
In: Journal of High Energy Physics, Vol. 2024, No. 6, 192, 27.06.2024.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{8021f7a6c8c74c5a956fa96a37b418b4,

title = "Measurements of electroweak W {\^A}± Z boson pair production in association with two jets in pp collisions at s = 13 TeV with the ATLAS detector",

abstract = "Measurements of integrated and differential cross-sections for electroweak W{\^A}±Z production in association with two jets (W{\^A}±Zjj) in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Collider from 2015 to 2018 at a centre-of-mass energy of s = 13 TeV are used, corresponding to an integrated luminosity of 140 fb{\^a}ˆ{\textquoteright}1. The W{\^A}±Zjj candidate events are reconstructed using leptonic decay modes of the gauge bosons. Events containing three identified leptons, either electrons or muons, and two jets are selected. Processes involving pure electroweak W{\^A}±Zjj production at Born level are separated from W{\^A}±Zjj production involving a strong coupling. The measured integrated fiducial cross-section of electroweak W{\^A}±Zjj production per lepton flavour is {\"I}ƒWZjj{\^a}ˆ{\textquoteright}EW{\^a}†{\textquoteright}{\^a}„“{\^a}€²{\^I}½lljj = 0.368 {\^A}± 0.037 (stat.) {\^A}± 0.059 (syst.) {\^A}± 0.003 (lumi.) fb, where {\^a}„“ and {\^a}„“{\^a}€² are either an electron or a muon. Respective cross-sections of electroweak and strong W{\^A}±Zjj production are measured separately for events with exactly two jets or with more than two jets, and in three bins of the invariant mass of the two jets. The inclusive W{\^A}±Zjj production cross-section, without separating electroweak and strong production, is also measured to be {\"I}ƒWZjj{\^a}†{\textquoteright}{\^a}„“{\^a}€²{\^I}½lljj = 1.462 {\^A}± 0.063 (stat.) {\^A}± 0.118 (syst.) {\^A}± 0.012 (lumi.) fb, per lepton flavour. The inclusive W{\^A}±Zjj production cross-section is measured differentially for several kinematic observables. Finally, the measurements are used to constrain anomalous quartic gauge couplings by extracting 95% confidence level intervals on dimension-8 operators.",

keywords = "Vector Boson Production, Hadron-Hadron Scattering, Proton-Proton Scattering, Beyond Standard Model",

author = "{The ATLAS collaboration} and Zainab Alsolami and A.E. Barton and G. Borissov and E.V. Bouhova-Thacker and Ruby Ferguson and James Ferrando and H. Fox and Alina Hagan and R.C.W. Henderson and R.W.L. Jones and V. Kartvelishvili and P.A. Love and E.J. Marshall and L. Meng and D. Muenstermann and N. Ribaric and Elliot Sampson and M. Smizanska and S. Spinali and A.M. Wharton",

year = "2024",

month = jun,

day = "27",

doi = "10.1007/jhep06(2024)192",

language = "English",

volume = "2024",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer-Verlag",

number = "6",

}

RIS

TY - JOUR

T1 - Measurements of electroweak W Â± Z boson pair production in association with two jets in pp collisions at s = 13 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Alsolami, Zainab

AU - Barton, A.E.

AU - Borissov, G.

AU - Bouhova-Thacker, E.V.

AU - Ferguson, Ruby

AU - Ferrando, James

AU - Fox, H.

AU - Hagan, Alina

AU - Henderson, R.C.W.

AU - Jones, R.W.L.

AU - Kartvelishvili, V.

AU - Love, P.A.

AU - Marshall, E.J.

AU - Meng, L.

AU - Muenstermann, D.

AU - Ribaric, N.

AU - Sampson, Elliot

AU - Smizanska, M.

AU - Spinali, S.

AU - Wharton, A.M.

PY - 2024/6/27

Y1 - 2024/6/27

N2 - Measurements of integrated and differential cross-sections for electroweak WÂ±Z production in association with two jets (WÂ±Zjj) in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Collider from 2015 to 2018 at a centre-of-mass energy of s = 13 TeV are used, corresponding to an integrated luminosity of 140 fbâˆ’1. The WÂ±Zjj candidate events are reconstructed using leptonic decay modes of the gauge bosons. Events containing three identified leptons, either electrons or muons, and two jets are selected. Processes involving pure electroweak WÂ±Zjj production at Born level are separated from WÂ±Zjj production involving a strong coupling. The measured integrated fiducial cross-section of electroweak WÂ±Zjj production per lepton flavour is ÏƒWZjjâˆ’EWâ†’â„“â€²Î½lljj = 0.368 Â± 0.037 (stat.) Â± 0.059 (syst.) Â± 0.003 (lumi.) fb, where â„“ and â„“â€² are either an electron or a muon. Respective cross-sections of electroweak and strong WÂ±Zjj production are measured separately for events with exactly two jets or with more than two jets, and in three bins of the invariant mass of the two jets. The inclusive WÂ±Zjj production cross-section, without separating electroweak and strong production, is also measured to be ÏƒWZjjâ†’â„“â€²Î½lljj = 1.462 Â± 0.063 (stat.) Â± 0.118 (syst.) Â± 0.012 (lumi.) fb, per lepton flavour. The inclusive WÂ±Zjj production cross-section is measured differentially for several kinematic observables. Finally, the measurements are used to constrain anomalous quartic gauge couplings by extracting 95% confidence level intervals on dimension-8 operators.

AB - Measurements of integrated and differential cross-sections for electroweak WÂ±Z production in association with two jets (WÂ±Zjj) in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Collider from 2015 to 2018 at a centre-of-mass energy of s = 13 TeV are used, corresponding to an integrated luminosity of 140 fbâˆ’1. The WÂ±Zjj candidate events are reconstructed using leptonic decay modes of the gauge bosons. Events containing three identified leptons, either electrons or muons, and two jets are selected. Processes involving pure electroweak WÂ±Zjj production at Born level are separated from WÂ±Zjj production involving a strong coupling. The measured integrated fiducial cross-section of electroweak WÂ±Zjj production per lepton flavour is ÏƒWZjjâˆ’EWâ†’â„“â€²Î½lljj = 0.368 Â± 0.037 (stat.) Â± 0.059 (syst.) Â± 0.003 (lumi.) fb, where â„“ and â„“â€² are either an electron or a muon. Respective cross-sections of electroweak and strong WÂ±Zjj production are measured separately for events with exactly two jets or with more than two jets, and in three bins of the invariant mass of the two jets. The inclusive WÂ±Zjj production cross-section, without separating electroweak and strong production, is also measured to be ÏƒWZjjâ†’â„“â€²Î½lljj = 1.462 Â± 0.063 (stat.) Â± 0.118 (syst.) Â± 0.012 (lumi.) fb, per lepton flavour. The inclusive WÂ±Zjj production cross-section is measured differentially for several kinematic observables. Finally, the measurements are used to constrain anomalous quartic gauge couplings by extracting 95% confidence level intervals on dimension-8 operators.

KW - Vector Boson Production

KW - Hadron-Hadron Scattering

KW - Proton-Proton Scattering

KW - Beyond Standard Model

U2 - 10.1007/jhep06(2024)192

DO - 10.1007/jhep06(2024)192

M3 - Journal article

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 6

M1 - 192

ER -

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