Precision test of a Fermion mass texture

Details Precision test of a Fermion mass texture Precision test of a Fermion mass texture

2001-04-09

arxiv.org/abs/hep-ph/0104088v2

Nucl.Phys.B615:358-384,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 6 figs. One figure added and minor changes included

Scientific paper

10.1016/S0550-3213(01)00408-4

Texture zeros in the quark Yukawa matrices generally lead to precise and simple expressions for CKM matrix elements in terms of ratios of quark masses. Using the new data on $b-$decays we test a particularly promising texture zero solution and show that it is at best approximate. We analyse the approximate texture zero structure and show it is consistent with experiment. We investigate the implications for the CKM unitarity triangle, measurements at $BaBar$ and $BELLE$ as well as for the theories which invoke family symmetries.

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