Updated analysis of the quark-mixing matrix and its phenomenological implications

Abstract

The 3\ifmmode\times\else\texttimes\fi{}3 quark-mixing matrix of Kobayashi and Maskawa is reexamined, using the latest information in calculating the ${K}_{L}\ensuremath{-}{K}_{S}$ mass difference and the $\mathrm{CP}$-violation parameter $\ensuremath{\epsilon}$, and using recent data of $\ensuremath{\nu}$ and $\overline{\ensuremath{\nu}}$ production of opposite-sign dileptons, and semileptonic decays of charmed and $b$-flavored particles; then the neutral-particle---antiparticle mixing and $\mathrm{CP}$ violation in the ${D}^{0}{\overline{D}}^{0}$, ${B}^{0}{\overline{B}}^{0}$, and ${T}^{0}{\overline{T}}^{0}$ systems are calculated. Constraints on the mixing matrix and $t$-quark mass from ${K}_{L}\ensuremath{-}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ are also considered.