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The e+e− → Zγγ → qq ̄γγ reaction at LEP and constraints on anomalous quartic gauge boson couplings

Document type: Articulo

Abstract

The cross section of the process e+e− → Zγ γ → qq ̄γ γ is measured with 215 pb−1 of data collected with the L3 detector during the final LEP run at centre-of-mass energies around 205 GeV and 207 GeV. No deviation from the Standard Model expectation is observed. The full data sample of 713 pb−1, collected above the Z resonance, is used to constrain the coefficients of anomalous quartic gauge boson couplings to: −0.02 GeV−2 < a0/Λ2 < 0.03 GeV−2, −0.07 GeV−2 < ac/Λ2 < 0.05 GeV−2, at 95% confidence level.

General information

Issue date: 10 de junio de 2002
Document language: English
Journal: Physics Letters B; vol. 540, no. 1-2
Origin: Facultad de Ciencias Exactas
ISSN: 0370-2693
Pages: 43-51
xmlui.dri2xhtml.METS-1.0.item-dc-subject: Física ; L3 detector ; LEP ; centre-of-mass energies
Subjects: Ciencias Exactas

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Created: 14 de junio de 2019
Available since: 14 de junio de 2019
Please, use one of this identificators(URI) for cite o linking this item:
  • http://sedici.unlp.edu.ar/handle/10915/76550
  • https://doi.org/10.1016/S0370-2693(02)02127-5

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    Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)