DOI: 10.1140/epjc/s2003-01151-3
A flexible parameterization of the CKM matrix via the singular-value-decomposition method
C.S. Kim and J.D. KimDepartment of Physics and IPAP, Yonsei University, Seoul 120-749, Korea
(Received: 27 November 2002 / Published online: 7 March 2003 )
Abstract
We investigate a flexible method by 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
let us extract
CP-violating properties without any specific
parameterization 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.
© Società Italiana di Fisica, Springer-Verlag 2003
