Shape of the Unitary Triangle and Phase Conventions of the CKM Matrix
Abstract
A shape of the unitary triangle versus a CP violating parameter δ depends on the phase conventions of the CKM matrix, because the CP violating parameter δ cannot directly be observed, so that it is not rephasing-invariant. In order to seek for a clue to the quark mass matrix structure and the origin of the CP violation, the dependence of the unitary triangle shape on the parameter δ is systematically investigated.
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