Measurements of the pp → W± γγ and pp → Zγγ cross sections at √s = 13 TeV and limits on anomalous quartic gauge couplings

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dc.date.accessioned2022-05-01T09:47:34Z
dc.date.accessioned2022-12-20T03:44:21Z
dc.date.available2022-05-01T09:47:34Z
dc.date.available2022-12-20T03:44:21Z
dc.date.created2022-05-01T09:47:34Z
dc.date.issued2021-10-01
dc.identifierJournal of High Energy Physics, v. 2021, n. 10, 2021.
dc.identifier1029-8479
dc.identifierhttp://hdl.handle.net/11449/233759
dc.identifier10.1007/JHEP10(2021)174
dc.identifier2-s2.0-85118231834
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5413858
dc.description.abstractThe 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 → ℓν and Z → ℓℓ decay modes (where ℓ = e, μ) are used to extract the Wγγ and Zγγ 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 σ(Wγγ) = 13.6−1.9+1.9(stat)−4.0+4.0(syst) ± 0.08 (PDF + scale) fb and σ(Zγγ) = 5.41−0.55+0.58(stat)−.070+0.64(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. [Figure not available: see fulltext.]
dc.languageeng
dc.relationJournal of High Energy Physics
dc.sourceScopus
dc.subjectHadron-Hadron scattering (experiments)
dc.subjectParticle and resonance production
dc.titleMeasurements of the pp → W± γγ and pp → Zγγ cross sections at √s = 13 TeV and limits on anomalous quartic gauge couplings
dc.typeArtículos de revistas


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