Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/16387
Title: 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
Authors: Sirunyan, AM
Tumasyan, A
Adam, W
Ambrogi, F
Asilar, E
Bergauer, T
Brandstetter, J
Brondolin, E
Dragicevic, M
Erö, J
Flechl, M
Friedl, M
Frühwirth, R
Ghete, VM
Grossmann, J
Hrubec, J
Jeitler, M
König, A
Krammer, N
Krätschmer, I
Liko, D
Madlener, T
Mikulec, I
Pree, E
Rabady, D
Rad, N
Rohringer, H
Schieck, J
Schöfbeck, R
Spanring, M
Spitzbart, D
Waltenberger, W
Wittmann, J
Wulz, CE
Zarucki, M
Chekhovsky, V
Mossolov, V
Suarez Gonzalez, J
De Wolf, EA
Di Croce, D
Janssen, X
Lauwers, J
Van Haevermaet, H
Van Mechelen, P
Van Remortel, N
Abu Zeid, S
Blekman, F
D'Hondt, J
De Bruyn, I
De Clercq, J
Deroover, K
Flouris, G
Lontkovskyi, D
Lowette, S
Moortgat, S
Moreels, L
Python, Q
Skovpen, K
Tavernier, S
Van Doninck, W
Van Mulders, P
Van Parijs, I
Brun, H
Clerbaux, B
De Lentdecker, G
Delannoy, H
Fasanella, G
Favart, L
Goldouzian, R
Grebenyuk, A
Karapostoli, G
Lenzi, T
Luetic, J
Maerschalk, T
Marinov, A
Randle-conde, A
Seva, T
Vander Velde, C
Vanlaer, P
Vannerom, D
Yonamine, R
Zenoni, F
Zhang, F
Cimmino, A
Cornelis, T
Dobur, D
Fagot, A
Gul, M
Khvastunov, I
Poyraz, D
Roskas, C
Salva, S
Tytgat, M
Verbeke, W
Zaganidis, N
Bakhshiansohi, H
Bondu, O
Brochet, S
Bruno, G
Keywords: CMS;Physics;SM;ZZ;VBS;aQGC
Issue Date: 2017
Publisher: Elsevier
Citation: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2017, 774 pp. 682 - 705
Abstract: © 2017 The Author(s) 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 σ EW (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.
URI: http://bura.brunel.ac.uk/handle/2438/16387
DOI: http://dx.doi.org/10.1016/j.physletb.2017.10.020
ISSN: 0370-2693
http://dx.doi.org/10.1016/j.physletb.2017.10.020
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

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