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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???????, where ?,??=e or ?. 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 ?EW(pp?ZZjj???????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.
Fuente: Physics Letters B 774 (2017) 682-705
Editorial: Elsevier
Fecha de publicación: 01/11/2017
Nº de páginas: 24
Tipo de publicación: Artículo de Revista
DOI: 10.1016/j.physletb.2017.10.020
ISSN: 0370-2693,1873-2445
Url de la publicación: https://doi.org/10.1016/j.physletb.2017.10.020
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SIRUNYAN, A. M.
ALICIA CALDERON TAZON
JOSE IBAN CABRILLO BARTOLOME
BARBARA CHAZIN QUERO
ESTEBAN CURRAS RIVERA
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
JUAN GARCIA FERRERO
GERVASIO GOMEZ GRAMUGLIO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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