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Abstract: The WZ production cross section is measured in proton-proton collisions at a centre-of-mass energy ?s = 13 TeV using data collected with the CMS detector, corresponding to an integrated luminosity of 35.9 fb?1. The inclusive cross section is measured to be ?tot(pp???WZ)?=?48.09 ??0.96 +?1.00 (stat) ??0.37 +?0.44 (theo) ??2.17 +?2.39 (syst)?±?1.39(lum) pb, resulting in a total uncertainty of ?2.78/+2.98 pb. Fiducial cross section and ratios of charge-dependent cross section measurements are provided. Differential cross section measurements are also presented with respect to three variables: the Z boson transverse momentum pT, the leading jet pT, and the M(WZ) variable, defined as the invariant mass of the system composed of the three leptons and the missing transverse momentum. Differential measurements with respect to the W boson pT, separated by charge, are also shown. Results are consistent with standard model predictions, favouring next-to-next-to-leading-order predictions over those at next-to-leading order. Constraints on anomalous triple gauge couplings are derived via a binned maximum likelihood fit to the M(WZ) variable.
Fuente: Journal of High Energy Physics, Vol. 2019, Num. 04, Art. Num. 122
Publisher: Springer Verlag
Publication date: 01/04/2019
No. of pages: 63
Publication type: Article
DOI: 10.1007/JHEP04(2019)122
ISSN: 1126-6708,1029-8479
Publication Url: https://doi.org/10.1007/JHEP04(2019)122
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UCrea Repository Read publication
SIRUNYAN, A. M.
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
BARBARA CHAZIN QUERO
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
PEDRO JOSE FERNANDEZ MANTECA
ANDREA GARCIA ALONSO
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
CEDRIC GERALD PRIEELS
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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