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Observation of VVZ production at √s = 13 TeV with the ATLAS detector

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A search for the production of three massive vector bosons, VVZ(V=W,Z), in proton-proton collisions at s=13 TeV is performed using data with an integrated luminosity of 140 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. Events produced in the leptonic final states WWZ→ℓνℓνℓℓ (ℓ=e,...

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Autores principales: Aad, Georges (Autor) , Ackermann, Anke (Autor) , Baltes, Lisa Marie (Autor) , Bartels, Falk (Autor) , Rio, Fernando del (Autor) , Dittmeier, Sebastian (Autor) , Dunford, Monica (Autor) , Franchino, Silvia (Autor) , Junkermann, Thomas (Autor) , Mkrtchyan, Tigran (Autor) , Ott, Philipp (Autor) , Rassloff, Damir Fabrice (Autor) , Sanfilippo, Lorenzo (Autor) , Sauer, Christof (Autor) , Schöning, André (Autor) , Schultz-Coulon, Hans-Christian (Autor) , Sothilingam, Varsiha (Autor) , Stamen, Rainer (Autor) , Starovoitov, Pavel (Autor) , Vigani, Luigi (Autor) , Weber, Sebastian (Autor) , Wessels, Martin (Autor) , Zinßer, Joachim (Autor)
Autor Corporativo: ATLAS Collaboration (Autor)
Formato: Article (Journal)
Lenguaje:inglés
Publicado: July 2025
In: Physics letters
Year: 2025, Volumen: 866, Pages: 1-27
ISSN:1873-2445
DOI:10.1016/j.physletb.2025.139527
Acceso en línea:Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.physletb.2025.139527
Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269325002886
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Notas de Autor:the ATLAS Collaboration*
Descripción
Sumario:A search for the production of three massive vector bosons, VVZ(V=W,Z), in proton-proton collisions at s=13 TeV is performed using data with an integrated luminosity of 140 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. Events produced in the leptonic final states WWZ→ℓνℓνℓℓ (ℓ=e,μ), WZZ→ℓνℓℓℓℓ, ZZZ→ℓℓℓℓℓℓ, and the semileptonic final states WWZ→qqℓνℓℓ and WZZ→ℓνqqℓℓ, are analysed. The measured cross section for the pp→VVZ process is 660−90+93(stat.)−81+88(syst.) fb, and the observed (expected) significance is 6.4 (4.7) standard deviations, representing the observation of VVZ production. In addition, the measured cross section for the pp→WWZ process is 442±94(stat.)−52+60(syst.) fb, and the observed (expected) significance is 4.4 (3.6) standard deviations, representing evidence of WWZ production. The measured cross sections are consistent with the Standard Model predictions. Constraints on physics beyond the Standard Model are also derived in the effective field theory framework by setting limits on Wilson coefficients for dimension-8 operators describing anomalous quartic gauge boson couplings.
Notas:*The ATLAS Collaboration: A. Ackermann, L.M. Baltes, F. Bartels, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, L. Sanfilippo, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, J. Zinsser [und sehr viele weitere]
Gesehen am 15.05.2026
Descripción Física:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2025.139527

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