CERN Accelerating science

Article
Title Tests of quantum electrodynamics at PETRA
Author(s) Branson, J G (DESY, Hamburg, West Germany)
Publication 1979
In: International Conference on High-energy Physics, pp.320-4
Subject category Particle Physics - Phenomenology
Abstract Results from three PETRA experiments on d/sup +/e/sup -/ to e/sup +/e /sup -/ and e/sup +/e/sup -/ to mu /sup +/ mu /sup -/ are presented. These are used to test for deviations of the photon propagator from 1 /q/sup 2/ or for nonpoint like behavior of one of the particles gamma , e or mu . Quantum Electrodynamics is found to be valid down to distances of 4*10/sup -16/ cm. (2 refs).



 Record created 2005-08-19, last modified 2018-04-11



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