Electroweak production of two jets in association with a Z boson in proton–proton collisions at √s= 13 TeV

CMS Collaboration

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

A measurement of the electroweak (EW) production of two jets in association with a Z boson in proton-proton collisions at s=13TeV is presented, based on data recorded in 2016 by the CMS experiment at the LHC corresponding to an integrated luminosity of 35.9fb--1. The measurement is performed in the ℓℓjj final state with ℓ including electrons and muons, and the jets j corresponding to the quarks produced in the hard interaction. The measured cross section in a kinematic region defined by invariant masses mℓℓ>50GeV, mjj>120GeV, and transverse momenta pTj>25GeV is σEW(ℓℓjj)=534±20(stat)±57(syst) fb, in agreement with leading-order standard model predictions. The final state is also used to perform a search for anomalous trilinear gauge couplings. No evidence is found and limits on anomalous trilinear gauge couplings associated with dimension-six operators are given in the framework of an effective field theory. The corresponding 95% confidence level intervals are -2.6<cWWW/Λ2<2.6TeV-2 and -8.4<cW/Λ2<10.1TeV-2. The additional jet activity of events in a signal-enriched region is also studied, and the measurements are in agreement with predictions.

Original languageEnglish
Article number589
JournalEuropean Physical Journal C
Volume78
Issue number7
DOIs
Publication statusPublished - 1 Jul 2018

Bibliographical note

Publisher Copyright:
© 2018, CERN for the benefit of the CMS collaboration.

Funding

FundersFunder number
Not addedST/I505580/1, ST/K003542/1, ST/M004775/1, ST/L005603/1, ST/J004871/1, ST/N001273/1, ST/I003622/1, ST/J005479/1
National Science Foundation1151640
Horizon 2020 Framework Programme675440
Science and Technology Facilities CouncilST/F007434/1, GRIDPP, ST/N000242/1

    Keywords

    • CMS
    • Cross section
    • Electroweak interaction
    • Physics
    • Vector boson fusion
    • Z

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