Deducing the symmetry of the standard model from the automorphism and structure groups of the exceptional Jordan algebra
Abstract
We continue the study undertaken in DV of the exceptional Jordan algebra J = J38 as (part of) the finite-dimensional quantum algebra in an almost classical space-time approach to particle physics. Along with reviewing known properties of J and of the associated exceptional Lie groups we argue that the symmetry of the model can be deduced from the Borel-de Siebenthal theory of maximal connected subgroups of simple compact Lie groups.
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