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Abstract: ABSTRACT: The cross section for W or Z boson production in association with two photons is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data set corresponds to an integrated luminosity of 137 fb?1 collected by the CMS experiment at the LHC. The W ? ?? and Z ? ?? decay modes (where ? = e, ?) are used to extract the W?? and Z?? cross sections in a phase space defined by electron (muon) with transverse momentum larger than 30 GeV and photon transverse momentum larger than 20 GeV. All leptons and photons are required to have absolute pseudorapidity smaller than 2.5. The measured cross sections in this phase space are ?(W??) = 13.6+1.9?1.9(stat)+4.0?4.0(syst) ± 0.08 (PDF + scale) fb and ?(Z??) = 5.41+0.58?0.55(stat)+0.64?.070(syst) ± 0.06 (PDF + scale) fb. Limits on anomalous quartic gauge couplings are set in the framework of an effective field theory with dimension-8 operators.
Fuente: Journal of High Energy Physics, Vol. 2021, Num.10, Art. Num. 174
Publisher: Springer Verlag
Publication date: 21/10/2021
No. of pages: 39
Publication type: Article
DOI: 10.1007/JHEP10(2021)174
ISSN: 1126-6708,1029-8479
Publication Url: https://doi.org/10.1007/JHEP10(2021)174
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UCrea Repository Read publication
TUMASYAN, A.
JAVIER ANDRES BROCHERO CIFUENTES
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
CELIA FERNANDEZ MADRAZO
PEDRO JOSE FERNANDEZ MANTECA
ANDREA GARCIA ALONSO
GERVASIO GOMEZ GRAMUGLIO
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
PABLO MATORRAS CUEVAS
JONATAN PIEDRA GOMEZ
CEDRIC GERALD PRIEELS
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
IVAN VILA ALVAREZ
JESUS MANUEL VIZAN GARCIA
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