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 — preprints:1997:ttp97-15 [2016/03/17 11:03] (current) Line 1: Line 1: + ====== TTP97-15 Quark mixing, CP violation and rare decays after the top quark            discovery ====== + + + We review the highlights of quark mixing, particle-antiparticle mixing, CP + violation and rare K- and B-decays in the Standard Model. The top quark + discovery, the precise measurement of its mass, the improved knowledge of the + couplings $V_{cb}$ and $V_{ub}$, and the calculations of NLO short distance + QCD corrections improved considerably the predictions for various decay rates, + the determination of the couplings $V_{td}$ and $V_{ts}$ and of the complex + phase in the Cabibbo-Kobayashi-Maskawa matrix. After presenting the general + theoretical framework for weak decays, we discuss the following topics in + detail: i) the CKM matrix, its most convenient parametrizations and the + unitarity triangle, ii) the CP-violating parameter $\epsilon_K$ and + $B^0_{d,s}-\bar B^0_{d,s}$ mixings, iii) the ratio $\epsilon'/\epsilon$, + iv) the rare K-decays $K_L\to\pi^0e^+e^-$, $K^+\to\pi^+\nu\bar\nu$, + $K_L\to\pi^0\nu\bar\nu$ and $K_L\to\mu^+\mu^-$, v) the radiative decays + $B\to X_s\gamma$ and $B\to X_s l^+l^-$, vi) the rare B-decays $B\to + X_{s,d}\nu\bar\nu$ and $B_{d,s}\to l^+l^-$, vii) CP violation in neutral and + charged B-decays putting emphasis on clean determinations of the angles of the + unitarity triangle, and viii) the role of electroweak penguins in B-decays. We + present several future visions demonstrating very clearly the great potential + of CP asymmetries in B-decays and of clean K-decays such as $K^+\to\pi^+\nu + \bar\nu$ and $K_L\to\pi^0\nu\bar\nu$ in the determination of the CKM + parameters and in decisive testing of the Standard Model. An outlook for the + coming years ends our review. + + + |**Andrzej J. Buras and Robert Fleischer**  | + |**     In Advanced KSeries on Directions in High Energy Physics - Vol. 15, Heavy Flavours II, Edited by A.J. Buras and M. Lindner, World Scientific, 1997. Pages: 65-238 **  | + | {{preprints:1997:ttp97-15.pdf|PDF}} {{preprints:1997:ttp97-15.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9704376|arXiv]]   | + | |