Abstract
We investigate a class of extra dimensional models where all
of the Standard Model fermions are localized to a single fixed point
in an S1/
2 orbifold, and each species is localized
with an exponential wavefunction with a different width. We show
that this naturally generates Yukawa hierarchies of the size present
in the Standard Model, and we find a set of model parameters that
reproduces the observed masses and mixings to experimental
accuracy. In addition, the dominant constraints, arising from flavor
changing neutral currents, are shown to restrict the
compactification scale to be 1/R ⩾ 2−5 TeV, which is a
much less stringent constraint than in similar extra dimensional
models of the Yukawa hierarchy.
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