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The electron-positron annihilation cross section used for high precision tests of the Standard Model

2002/12/03 by Stefan Groote, S. Groote, Groote, Stefan
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Muon and positron interactions and applications #Particle Detector Development and Performance #Radiation Detection and Scintillator Technologies #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0212041

26 pages in LaTeX, including 7 Postscript figures, invited talk given at the Institute for Physics, Tartu University, Estonia, October 22nd, 2002

arxiv created 2002/12/03 · openalex publication_date 2002/12/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Quantities like the fine structure constant at the pole of the Z boson and the anomalous magnetic moment of the muon are of profound importance for testing the Standard Model of elementary particle physics. Because these quantities are known with very high precision, deviations between experimental measurements and theory predictions for these quantities open a window for so-called "new physics", i.e. physics beyond the Standard Model. In this seminar new calculation techniques for the most unreliable part of the theory predictions, the hadronic contribution, are formulated, discussed and used for a prediction of these quantities.

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