KIT | KIT-Bibliothek | Impressum | Datenschutz

Electroweak production of two jets in association with a Z boson in proton–proton collisions at $\sqrt{s}= $ 13$\,\text {TeV}$

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Del Valle, A. Escalante; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Grossmann, J.; Hrubec, J.; Jeitler, M.; König, A.; Krammer, N.; ... mehr

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.

Verlagsausgabe §
DOI: 10.5445/IR/1000086196
Veröffentlicht am 05.10.2018
DOI: 10.1140/epjc/s10052-018-6049-9
Zitationen: 21
Web of Science
Zitationen: 17
Zitationen: 12
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 07.2018
Sprache Englisch
Identifikator ISSN: 1434-6044, 1434-6052
KITopen-ID: 1000086196
Erschienen in The European physical journal / C
Verlag Springer Verlag
Band 78
Heft 7
Seiten Article: 589
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 20.07.2018
Schlagwörter CMS; Physics; Z; Vector boson fusion; Electroweak interaction; Cross section
Nachgewiesen in Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page