Flavour Democracy Calls for the Fourth Generation

Preprint

20 July 1992

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9207248

Abstract

It is argued with the help of an illustrative model, that the inter--species hierarchy among the fermion masses and the quark mixing angles can be accommodated naturally in the standard model with (approximate) flavor democracy provided there are four families of sequential quark--leptons with all members of the fourth family having roughly equal masses. The special problem of light neutrino masses (if any) and possible solutions are also discussed.

Keywords

FOURTH GENERATION
FLAVOUR DEMOCRACY
SEQUENTIAL QUARK
DEMOCRACY CALLS
STANDARD MODEL
QUARK MIXING
ACCOMMODATED

All Related Versions

Version 1, 1992-07-20, ArXiv

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