Quark Mass Textures and sin 2 beta
Abstract
Recent precise measurements of sin 2 beta from the B-factories (BABAR and BELLE) and a better known strange quark mass from lattice QCD make precision tests of predictive texture models possible. The models tested include those hierarchical N-zero textures classified by Ramond, Roberts and Ross, as well as any other hierarchical matrix Ansatz with non-zero 12 = 21 and vanishing 11 and 13 elements. We calculate the maximally allowed value for sin 2 beta in these models and show that all the aforementioned models with vanishing 11 and 13 elements are ruled out at the 3 sigma level. While at present sin 2 beta and |Vub/Vcb| are equally good for testing N-zero texture models, in the near future the former will surpass the latter in constraining power.
Keywords
Cite
@article{arxiv.hep-ph/0401169,
title = {Quark Mass Textures and sin 2 beta},
author = {Hyung Do Kim and Stuart Raby and Leslie Schradin},
journal= {arXiv preprint arXiv:hep-ph/0401169},
year = {2009}
}
Comments
1+20 pages, 2 figures, JHEP3 class