EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH Consistency Checks of Grand Uni ed Theories

Abstract

The world averaged values of the electroweak and strong couplings and the lower limits on the proton lifetime are used for consistency checks of Grand Uni ed Theories (GUT). It is con rmed that new physics outside the Standard Model (SM) is required to obtain uni cation of the electroweak and strong forces. Such new physics could come from the minimal… (More)

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