Sudakov Effects in Electroweak Corrections

Details Sudakov Effects in Electroweak Corrections Sudakov Effects in Electroweak Corrections

1998-09-10

arxiv.org/abs/hep-ph/9809321v2

Phys.Lett.B446:278-284,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

Title changed and minor changes in the text. Final version to be published on Physics Letters B. 8 pages, 3 figures

Scientific paper

10.1016/S0370-2693(98)01541-X

In perturbation theory the infrared structure of the electroweak interactions produces large corrections proportional to double logarithms log^2 (s/m^2), similar to Sudakov logarithms in QED, when the scale s is much larger than the typical mass m of the particles running in the loops. These energy growing corrections can be particularly relevant for the planned Next Linear Colliders. We study these effects in the Standard Model for the process e+ e^->f fbar and we compare them with similar corrections coming from SUSY loops.

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