The Complete $|\Delta S|=2$ Hamiltonian in the Next-To-Leading Order and its Phenomenological Implications

Abstract

We briefly sketch the calculation of the effective low-energy $|\Delta S|=2$-hamiltonian in the next-to-leading order of renormalization group improved perturbation theory. The result for the coefficient ${\eta }_3^{\star }$ is discussed. Further we present a 1996 update of our phenomenological analysis of the unitarity triangle where we include the information available on $B^0-\overline{B^0}$-mixing.

Comments: Invited talk given at ICHEP'96, 24-31 Aug 1996, Warsaw, Poland. To appear in the proceedings. 5 pages, LaTeX2e using stwol.sty (included). Full and compact PostScript available at ftp://feynman.t30.physik.tu-muenchen.de/pub/preprints/desy-96-190.ps.gz