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High mass photon pairs in ℓ+ℓ−γγ events at LEP

Document type: Articulo

Abstract

From the analysis of the reactions e + e- → ℓ+ℓ−(nγ) (ℓ = e,μ,τ) we observe four events, e+e−γγ and three μ+μ−γγ, with the invariant mass of the photon pairs close to 60 GeV. These events were selected from a data sample collected in the L3 detector corresponding to 950000 produced Z°'s. More data are necessary to ascertain the origin of these events.

General information

Issue date: 3 de diciembre de 1992
Document language: English
Journal: Physics Letters B; vol. 295, no. 3-4
Origin: Facultad de Ciencias Exactas
ISSN: 0370-2693
Pages: 337-346
xmlui.dri2xhtml.METS-1.0.item-dc-subject: Física ; photon pairs ; 60 GeV ; L3 detector
Subjects: Ciencias Exactas

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Created: 14 de marzo de 2019
Available since: 14 de marzo de 2019
Please, use one of this identificators(URI) for cite o linking this item:
  • http://sedici.unlp.edu.ar/handle/10915/73191
  • https://doi.org/10.1016/0370-2693(92)91576-U

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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)