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Study of multiphoton final states and tests of QED in e+e− collisions at √s up to 209 GeV

Document type: Articulo

Abstract

The process e+e− → nγ with n 2 is studied at centre-of-mass energies ranging from √s = 192 to 209 GeV. The data sample corresponds to a total integrated luminosity of 427 pb−1. The total and differential cross sections are found to be in agreement with the QED expectations. Using all the data collected with the L3 detector above the Z pole, limits on deviations from QED, excited electrons, contact interactions, extra space dimensions and excited spin-3/2 leptons are set.

General information

Issue date: 7 de febrero de 2002
Document language: English
Journal: Physics Letters B; vol. 531, no. 1-2
Origin: Facultad de Ciencias Exactas
ISSN: 0370-2693
Pages: 28-38
xmlui.dri2xhtml.METS-1.0.item-dc-subject: Física ; centre-of-mass energies ; total integrated luminosity ; QED expectations
Subjects: Ciencias Exactas

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Created: 13 de junio de 2019
Available since: 13 de junio de 2019
Please, use one of this identificators(URI) for cite o linking this item:
  • http://sedici.unlp.edu.ar/handle/10915/76430
  • https://doi.org/10.1016/S0370-2693(02)01339-4

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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)