Unitarity triangle and quark mass matrices on the nearest-neighbor interaction basis

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We examine the unitarity triangle of the KM matrix, which is derived from the general quark mass matrices in the NNI basis. The Fritzsch {ital Ans{umlt a}tze} are modified by introducing four additional parameters. The KM matrix elements are expressed in terms of quark mass ratios, two phases, and four additional parameters. It is found that the vertex of the unitarity triangle is predicted to be almost in the second quadrant on the {rho}-{eta} plane as far as V{sub us}{approx_equal}{minus}{radical}(m{sub d}/m{sub s})e{sup ip}+{radical}(m{sub u}/m{sub c})e{sup iq}. {copyright} {ital 1997} {ital The American Physical Society}

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  • Physical Review D

    Physical Review D 55 (3), 1509-1514, 1997-02-01

    American Physical Society (APS)

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