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Standard model fermions and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>8</mml:mn></mml:mrow></mml:math>supergravity
In a scheme originally proposed by Gell-Mann, and subsequently shown to be realized at the $\mathrm{SU}(3)\ifmmode\times\else\texttimes\fi{}\mathrm{U}(1)$ stationary point of maximal gauged SO(8) supergravity by Warner and one of the present authors, the 48 spin-$\frac{1}{2}$ fermions of the theory remaining after the removal of eight Goldstinos can be identified with the …