Search for triboson (WWW -/+)-W-+/--W-+/- production in pp collisions at root s=8 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B Abeloos, R. Aben, O.S. AbouZeid, NL Abraham, H. Abramowicz, H. Abreu, R. Abreu, Y. Abulaiti, B.S. Acharya, Shin-ichi Adachi, L. Adamczyk, David L. Adams, J P Adelman, S. Adomeit, T. AdyeMogens Dam, Jørn Dines Hansen, Jørgen Beck Hansen, Stefania Xella, Peter Henrik Hansen, Troels Christian Petersen, Ask Emil Løvschall-Jensen, Alejandro Alonso Diaz, James William Monk, Lars Egholm Pedersen, Graig Wiglesworth, Gorm Aske Gram Krohn Galster, Simon Holm Stark, Geert-Jan Besjes, Fabian Alexander Jürgen Thiele, Flavia de Almeida Dias, Milena Bajic

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Abstract

This paper reports a search for triboson W±W±W production in two decay channels (W±W±W→ ℓ±νℓ±νℓν and W±W±W→ ℓ±νℓ±νjj with ℓ= e, μ) in proton-proton collision data corresponding to an integrated luminosity of 20.3 fb - 1 at a centre-of-mass energy of 8 TeV with the ATLAS detector at the Large Hadron Collider. Events with exactly three charged leptons, or two leptons with the same electric charge in association with two jets, are selected. The total number of events observed in data is consistent with the Standard Model (SM) predictions. The observed 95% confidence level upper limit on the SM W±W±W production cross section is found to be 730 fb with an expected limit of 560 fb in the absence of SM W±W±W production. Limits are also set on WWWW anomalous quartic gauge couplings.

Original languageEnglish
Article number141
JournalEuropean Physical Journal C
Volume77
Issue number3
ISSN1434-6044
DOIs
Publication statusPublished - 1 Mar 2017

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