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Three fermionic generations on a topological defect in extra dimensions. (English) Zbl 1097.81931
Summary: We suggest a mechanism explaining the origin of three generations of the Standard Model fermions from one generation in a higher-dimensional theory. Four-dimensional fermions appear as zero modes trapped in the core of a topological defect with topological number three. We discuss hierarchical pattern of masses and mixings which arises in these models.

81V22 Unified quantum theories
81T45 Topological field theories in quantum mechanics
83E15 Kaluza-Klein and other higher-dimensional theories
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