Stitching the Yukawa Quilt

Details Stitching the Yukawa Quilt Stitching the Yukawa Quilt

1993-03-31

arxiv.org/abs/hep-ph/9303320v1

Nucl.Phys.B406:19-42,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, RAL-93-010 UFIFT-93-06

Scientific paper

10.1016/0550-3213(93)90159-M

We develop a systematic analysis of quark mass matrices which, starting with the measured values of quark masses and mixing angles, allows for a model independent search for all possible (symmetric or hermitian) mass matrices having texture zeroes at the unification scale. A survey of all six and five texture zero structures yields a total of five possible solutions which may be distinguished by improved measurements of the CKM matrix elements and which may readily be extended to include lepton masses with the Georgi-Jarlskog texture. The solutions naturally suggest a parameterisation for the mass matrices based on a perturbative expansion and we present some speculations concerning the origin of such structure.

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