Abstract
Inspired by unique features of the preon-subpreon model, we propose a new scheme for quark mixing. In our scheme, the mass relations md ≪ms ≪mb and mu ≪mc ≪mt are naturally understood. The resultant CKM matrix has very nice properties. The fact that |Vus| and |Vcd| are remarkably large compared with other off-diagonal elements is naturally understood. |Vcb| ≃|Vts| is predicted and their small values are explained. |Vub| and |Vtd| are predicted to be much smaller than |Vcb|. The parametrization invariant measure of CP violation, J, is predicted to be |Vud| |Vub| |Vtd| sin φ. The mass relations and mixings of q', q'', ls and leptons are also discussed.
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