Discrete Symmetry and CP Phase of the Quark Mixing Matrix

Details Discrete Symmetry and CP Phase of the Quark Mixing Matrix Discrete Symmetry and CP Phase of the Quark Mixing Matrix

2005-05-09

arxiv.org/abs/hep-ph/0505064v1

Phys.Lett. B620 (2005) 151-155

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, no figure

Scientific paper

10.1016/j.physletb.2005.06.038

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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