Speaker
Johannes Herms
(Kavli IPMU, University of Tokyo)
Description
The individual fermion generations of the Standard Model fit neatly into a representation of a simple Grand Unified Theory gauge algebra. If Grand Unification is not realized in nature, this would appear to be a coincidence. We attempt to quantify this coincidence.
We find that only a small fraction of consistent fermion representations similar to the Standard Model are unifiable when the analysis is extended beyond the immediate neighborhood of the single-generation Standard Model. This purely group-theoretical analysis may be taken as a bottom-up indication for Grand Unification, conceptually similar to a naturalness argument.
Primary authors
Johannes Herms
(Kavli IPMU, University of Tokyo)
Maximilian Ruhdorfer
(Stanford)
