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arXiv · hep-ph/0505064

Discrete Symmetry and CP Phase of the Quark Mixing Matrix

Shao-Long Chen·Ernest Ma
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Abstract

A simple specific pattern of the two 3 X 3 quark mass matrices is proposed, resulting in a prediction of the CP phase of the charged-current mixing matrix V_CKM, i.e. sin 2 phi_1 (beta) = 0.733, which is in remarkable agreement with data, i.e. sin 2 phi_1 = 0.728 +/- 0.056 +/- 0.023 from Belle and sin 2 beta = 0.722 +/- 0.040 +/- 0.023 from Babar. This pattern can be maintained by a discrete family symmetry, an example of which is D_7, the symmetry group of the heptagon.

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Shao-Long Chen, Ernest Ma. 2005-05-09. Discrete Symmetry and CP Phase of the Quark Mixing Matrix. https://doi.org/10.1016/j.physletb.2005.06.038

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