Testing Flavor Symmetries by B-Factory

Details Testing Flavor Symmetries by B-Factory Testing Flavor Symmetries by B-Factory

2008-09-30

arxiv.org/abs/0809.5136v3

Int.J.Mod.Phys.A24:5831-5844,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 10 figures, v2:discussions about statistical analysis added, one figure added, one reference added, v3:final version

Scientific paper

10.1142/S0217751X09047387

Predictions of the Cabibbo-Kobayashi-Maskawa (CKM) parameters are investigated in detail in recent predictive models which are based on low-energy non-abelian discrete family symmetries. Some of the models can already be excluded at the present precision of the determination of the CKM parameters, while some of them seem to survive. We find that to make the uncertainties in the predictions comparable with the assumed uncertainties of $\sim 1^{\circ}$ and $\sim 2^{\circ}$ in $\phi_2$ and $\phi_3$, respectively, at about 50 inverse atto barn achieved at a feature B factory, it is necessary to reduce the uncertainties in the quark masses, especially that of the strange quark mass by more than 60%.

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