= David Emmanuel-Costa
{c}
{tag=Physicist}
A theoretical <particle physicist> who coauthored a proposed <grand unified theory> addressing the number of <fermion generations>. The study tests which <special unitary groups> and antisymmetric <representations> can accommodate the required matter content. It illustrates how <gauge anomaly> cancellation and representation branching constrain a model before comparison with measured particle properties.<Number of fermion generations from a novel grand unified model by Pritibhajan Byakti and others>[Abstract and section 3: model-building constraints and representation branching]{ref}
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