A Flexible Parametrization of CKM matrix via Singular-Value-Decomposition Method

Details A Flexible Parametrization of CKM matrix via Singular-Value-Decomposition Method A Flexible Parametrization of CKM matrix via Singular-Value-Decomposition Method

2002-11-26

arxiv.org/abs/hep-ph/0211401v1

Eur.Phys.J.C28:55-61,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 2 figures

Scientific paper

10.1140/epjc/s2003-01151-3

We investigate a flexible method in which we can test the unitarity of the quark flavor mixing matrix step-by-step. Singular-Value-Decomposition (SVD) techniques are used in analyzing the mixing matrix over a broader parameter region than the unitarity region. Unitary constraints make us extract CP violating properties without any specific parametrization when the magnitudes of at least three mixing matrix elements in three generation quark mixing are given. This method can also be applied to the analysis of lepton flavor mixing, in which only a few moduli are presently measured.

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