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Measurement of the running of the fine-structure constant

Document type: Articulo

Abstract

Small-angle Bhabha scattering data recorded at the Z resonance and large-angle Bhabha scattering data recorded at 's s189 GeV by the L3 detector at LEP are used to measure the running of the effective fine-structure constant for spacelike momentum transfers. The results are α−1(−2.1GeV2)−α−1(−6.25GeV2)=0.78±0.26 α−1(−12.25GeV2)−α−1(−3434GeV2)=3.80±1.29, in agreement with theoretical predictions.

General information

Issue date: 9 de marzo de 2000
Document language: English
Journal: Physics Letters B; vol. 476, no. 1-2
Origin: Facultad de Ciencias Exactas
ISSN: 0370-2693
Pages: 40-48
xmlui.dri2xhtml.METS-1.0.item-dc-subject: Física ; fine-structure ; Bhabha scattering data ; LEP
Subjects: Ciencias Exactas

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Created: 29 de mayo de 2019
Available since: 29 de mayo de 2019
Please, use one of this identificators(URI) for cite o linking this item:
  • http://sedici.unlp.edu.ar/handle/10915/75551
  • https://doi.org/10.1016/S0370-2693(00)00122-2

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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)