Single bremsstrahlung processes in gauge theories |
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| Authors: | FA Berends R Kleiss P De Causmaecker R Gastmans Tai Tsun Wu |
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| Institution: | Instituut-Lorentz, Leiden, The Netherlands;Instituut voor Theoretische Fysika, University of Leuven, B-3030 Leuven, Belgium;Gordon McKay Laboratory, Harvard University, Cambridge, MA 02138, USA |
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| Abstract: | We find that, for QED and for SU(N) gauge theories, single hard bremsstrahlung cross sections are remarkably simple in the ultrarelativistic limit. They can be written as a product of two factors: one factor is connected with the lowest order, elastic process, and the second one is related to the infrared factor which describes soft quantum emission. We present explicit formulae for various processes. |
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