Observation of 𝑊⁢𝑊⁢𝑊 Production in 𝑝⁢𝑝 Collisions at √𝑠=13  TeV with the ATLAS Detector

ATLAS Collaboration; Candice Basson; Callum Birch-Sykes; Alexander Bitadze; Savannah Clawson; Cinzia Da Via; Caterina Doglioni; Matteo D'Uffizi; Samuel Dysch; Alessandra Forti; Robert Hankache; Benjamin Honan; Zak Lawrence; Brian Le; Jiri Masik; Francisca Munoz Sanchez; Martin Murin; Alexander Oh; Joleen Pater; Yvonne Peters; Andrew Pilkington; Darren Price; Y Qin; Nicolas Scharmberg; S. M.  Shaw; Valentina Vecchio; Terence Wyatt

doi:10.1103/PhysRevLett.129.061803

Observation of 𝑊⁢𝑊⁢𝑊 Production in 𝑝⁢𝑝 Collisions at √𝑠=13 TeV with the ATLAS Detector

ATLAS Collaboration , Candice Basson, Callum Birch-Sykes, Alexander Bitadze, Savannah Clawson, Cinzia Da Via, Caterina Doglioni, Matteo D'Uffizi, Samuel Dysch, Alessandra Forti, Robert Hankache, Benjamin Honan, Zak Lawrence, Brian Le, Jiri Masik, Francisca Munoz Sanchez, Martin Murin, Alexander Oh, Joleen Pater, Yvonne PetersAndrew Pilkington, Darren Price, Y Qin, Nicolas Scharmberg, S. M. Shaw, Valentina Vecchio, Terence Wyatt

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Abstract

This Letter reports the observation of 𝑊⁢𝑊⁢𝑊 production and a measurement of its cross section using 139 fb−1 of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Events with two same-sign leptons (electrons or muons) and at least two jets, as well as events with three charged leptons, are selected. A multivariate technique is then used to discriminate between signal and background events. Events from 𝑊⁢𝑊⁢𝑊 production are observed with a significance of 8.0 standard deviations, where the expectation is 5.4 standard deviations. The inclusive 𝑊⁢𝑊⁢𝑊 production cross section is measured to be 820±100 (stat)±80⁢ (syst) fb, approximately 2.6 standard deviations from the predicted cross section of 511±18 fb calculated at next-to-leading-order QCD and leading-order electroweak accuracy.

Original language	English
Journal	Physical Review Letters
Volume	129
DOIs	https://doi.org/10.1103/PhysRevLett.129.061803
Publication status	Published - 4 Aug 2022

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ATLAS Collaboration , Basson, C., Birch-Sykes, C., Bitadze, A., Clawson, S., Da Via, C., Doglioni, C., D'Uffizi, M., Dysch, S., Forti, A., Hankache, R., Honan, B., Lawrence, Z., Le, B., Masik, J., Munoz Sanchez, F., Murin, M., Oh, A., Pater, J., ... Wyatt, T. (2022). Observation of 𝑊⁢𝑊⁢𝑊 Production in 𝑝⁢𝑝 Collisions at √𝑠=13 TeV with the ATLAS Detector. Physical Review Letters, 129. https://doi.org/10.1103/PhysRevLett.129.061803

@article{2153226ca7e44421a7b70f4c179afc43,

title = "Observation of 𝑊⁢𝑊⁢𝑊 Production in 𝑝⁢𝑝 Collisions at √𝑠=13 TeV with the ATLAS Detector",

abstract = "This Letter reports the observation of 𝑊⁢𝑊⁢𝑊 production and a measurement of its cross section using 139 fb−1 of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Events with two same-sign leptons (electrons or muons) and at least two jets, as well as events with three charged leptons, are selected. A multivariate technique is then used to discriminate between signal and background events. Events from 𝑊⁢𝑊⁢𝑊 production are observed with a significance of 8.0 standard deviations, where the expectation is 5.4 standard deviations. The inclusive 𝑊⁢𝑊⁢𝑊 production cross section is measured to be 820±100 (stat)±80⁢ (syst) fb, approximately 2.6 standard deviations from the predicted cross section of 511±18 fb calculated at next-to-leading-order QCD and leading-order electroweak accuracy.",

author = "{ATLAS Collaboration} and Candice Basson and Callum Birch-Sykes and Alexander Bitadze and Savannah Clawson and {Da Via}, Cinzia and Caterina Doglioni and Matteo D'Uffizi and Samuel Dysch and Alessandra Forti and Robert Hankache and Benjamin Honan and Zak Lawrence and Brian Le and Jiri Masik and {Munoz Sanchez}, Francisca and Martin Murin and Alexander Oh and Joleen Pater and Yvonne Peters and Andrew Pilkington and Darren Price and Y Qin and Nicolas Scharmberg and S. M. Shaw and Valentina Vecchio and Terence Wyatt",

year = "2022",

month = aug,

day = "4",

doi = "10.1103/PhysRevLett.129.061803",

language = "English",

volume = "129",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

}

ATLAS Collaboration , Basson, C, Birch-Sykes, C, Bitadze, A, Clawson, S, Da Via, C , Doglioni, C, D'Uffizi, M, Dysch, S, Forti, A, Hankache, R, Honan, B, Lawrence, Z, Le, B, Masik, J, Munoz Sanchez, F, Murin, M, Oh, A, Pater, J, Peters, Y , Pilkington, A , Price, D, Qin, Y, Scharmberg, N, Shaw, SM, Vecchio, V & Wyatt, T 2022, 'Observation of 𝑊⁢𝑊⁢𝑊 Production in 𝑝⁢𝑝 Collisions at √𝑠=13 TeV with the ATLAS Detector', Physical Review Letters, vol. 129. https://doi.org/10.1103/PhysRevLett.129.061803

TY - JOUR

T1 - Observation of 𝑊⁢𝑊⁢𝑊 Production in 𝑝⁢𝑝 Collisions at √𝑠=13 TeV with the ATLAS Detector

AU - ATLAS Collaboration

AU - Basson, Candice

AU - Birch-Sykes, Callum

AU - Bitadze, Alexander

AU - Clawson, Savannah

AU - Da Via, Cinzia

AU - Doglioni, Caterina

AU - D'Uffizi, Matteo

AU - Dysch, Samuel

AU - Forti, Alessandra

AU - Hankache, Robert

AU - Honan, Benjamin

AU - Lawrence, Zak

AU - Le, Brian

AU - Masik, Jiri

AU - Munoz Sanchez, Francisca

AU - Murin, Martin

AU - Oh, Alexander

AU - Pater, Joleen

AU - Peters, Yvonne

AU - Pilkington, Andrew

AU - Price, Darren

AU - Qin, Y

AU - Scharmberg, Nicolas

AU - Shaw, S. M.

AU - Vecchio, Valentina

AU - Wyatt, Terence

PY - 2022/8/4

Y1 - 2022/8/4

N2 - This Letter reports the observation of 𝑊⁢𝑊⁢𝑊 production and a measurement of its cross section using 139 fb−1 of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Events with two same-sign leptons (electrons or muons) and at least two jets, as well as events with three charged leptons, are selected. A multivariate technique is then used to discriminate between signal and background events. Events from 𝑊⁢𝑊⁢𝑊 production are observed with a significance of 8.0 standard deviations, where the expectation is 5.4 standard deviations. The inclusive 𝑊⁢𝑊⁢𝑊 production cross section is measured to be 820±100 (stat)±80⁢ (syst) fb, approximately 2.6 standard deviations from the predicted cross section of 511±18 fb calculated at next-to-leading-order QCD and leading-order electroweak accuracy.

AB - This Letter reports the observation of 𝑊⁢𝑊⁢𝑊 production and a measurement of its cross section using 139 fb−1 of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Events with two same-sign leptons (electrons or muons) and at least two jets, as well as events with three charged leptons, are selected. A multivariate technique is then used to discriminate between signal and background events. Events from 𝑊⁢𝑊⁢𝑊 production are observed with a significance of 8.0 standard deviations, where the expectation is 5.4 standard deviations. The inclusive 𝑊⁢𝑊⁢𝑊 production cross section is measured to be 820±100 (stat)±80⁢ (syst) fb, approximately 2.6 standard deviations from the predicted cross section of 511±18 fb calculated at next-to-leading-order QCD and leading-order electroweak accuracy.

U2 - 10.1103/PhysRevLett.129.061803

DO - 10.1103/PhysRevLett.129.061803

M3 - Article

SN - 0031-9007

VL - 129

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Observation of 𝑊⁢𝑊⁢𝑊 Production in 𝑝⁢𝑝 Collisions at √𝑠=13 TeV with the ATLAS Detector

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