New parametrization of the Kobayashi-Maskawa matrix and its implications

We propose a new parametrization of the quark mixing matrix (the Kobayashi-Maskawa matrix) in terms of four independent moduli of its matrix elements: ‖$V_{\mathrm{us}}$‖, ‖$V_{\mathrm{cb}}$‖, ‖$V_{\mathrm{td}}$‖, and ‖$V_{\mathrm{ub}}$‖/‖$V_{\mathrm{cb}}$‖. Based on this convenient parametrization, we study the constraints on the top-quark mass and the quark mixing elements ‖$V_{\mathrm{ij}}$‖ from the recent measurement of ε’/ε, the ARGUS result on $B_d^0$-B¯ $d^0$ mixing, the ratio ‖$V_{\mathrm{ub}}$‖/‖$V_{\mathrm{cb}}$‖, and the mixing parameter ε in the $K^0$-K¯ ${}_{}{}^0{}_{}{}^{}$ system taking into account all the uncertainties in the input.