Journal article
Measurement of vector boson scattering and constraints on anomalous quartic couplings from events with four leptons and two jets in proton–proton collisions at √s = 13 TeV
Physics letters. B, Vol.774, pp.682-705
11/10/2017
DOI: 10.1016/j.physletb.2017.10.020
Abstract
A measurement of vector boson scattering and constraints on anomalous quartic gauge couplings from events with two Z bosons and two jets are presented. The analysis is based on a data sample of proton–proton collisions at s=13 TeV collected with the CMS detector and corresponding to an integrated luminosity of 35.9 fb−1. The search is performed in the fully leptonic final state ZZ→ℓℓℓ′ℓ′, where ℓ,ℓ′=e or μ. The electroweak production of two Z bosons in association with two jets is measured with an observed (expected) significance of 2.7 (1.6) standard deviations. A fiducial cross section for the electroweak production is measured to be σEW(pp→ZZjj→ℓℓℓ′ℓ′jj)=0.40−0.16 +0.21(stat)−0.09 +0.13(syst) fb, which is consistent with the standard model prediction. Limits on anomalous quartic gauge couplings are determined in terms of the effective field theory operators T0, T1, T2, T8, and T9. This is the first measurement of vector boson scattering in the ZZ channel at the LHC.
Details
- Title: Subtitle
- Measurement of vector boson scattering and constraints on anomalous quartic couplings from events with four leptons and two jets in proton–proton collisions at √s = 13 TeV
- Creators
- A. M Sirunyan - Yerevan Physics InstituteHugues Brun - Université Libre de BruxellesCécile CaillolBarbara Clerbaux - Université Libre de BruxellesGilles LentdeckerGiuseppe Fasanella - Université Libre de BruxellesLaurent Favart - Université Libre de BruxellesAnastasia Grebenyuk - Université Libre de BruxellesGeorgia Karapostoli - Université Libre de BruxellesThomas Lenzi - Université Libre de BruxellesAlexandre LeonardThierry Maerschalk - Université Libre de BruxellesAudrey Marinov - Université Libre de BruxellesLuca PernieAidan Sean Randle-CondeThomas ReisTomislav Seva - Université Libre de BruxellesCatherine Vander VeldePascal Vanlaer - Université Libre de BruxellesRyo Yonamine - Université Libre de BruxellesFlorian Zenoni - Université Libre de BruxellesFengwangdong Zhang - Université Libre de BruxellesCMS Collaboration
- Contributors
- Y Onel (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.774, pp.682-705
- DOI
- 10.1016/j.physletb.2017.10.020
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier B.V
- Grant note
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- Language
- English
- Date published
- 11/10/2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199683402771
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