This paper shows that the Standard Model symmetry algebra embedded in E7 acts on three separate 32-dimensional subspaces, each equivalent to one generation of fermions and antifermions, describable as the exterior algebra ΛC5.
Jordan Pair Quantum Theory and the Standard Model
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abstract
Jordan pairs and hermitian Jordan triples were discovered by mathematicians studying Jordan algebras, which describe the possible algebras of observables in quantum mechanics. We point out a striking correspondence between the doubly exceptional hermitian Jordan triple (the so-called ``bi-Cayley'' triple) and the structure of the Standard Model of particle physics. We also point out how ordinary quantum mechanics may be reformulated, and generalized, using hermitian Jordan triples.
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Three Generations in E7
This paper shows that the Standard Model symmetry algebra embedded in E7 acts on three separate 32-dimensional subspaces, each equivalent to one generation of fermions and antifermions, describable as the exterior algebra ΛC5.