Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-08-18
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, LaTeX, 2 figures. Invited plenary talk given at Beyond the Standard Model V, Balholm, Norway, April 29 - May 4, 1997
Scientific paper
10.1063/1.54470
A brief review of CP violation in $K$ and $B$ decays is given. While the observables $\varepsilon$ and Re$(\varepsilon'/\varepsilon)$ describing CP violation in neutral $K$ decays do not allow a powerful test of the CKM mechanism of CP violation, rare $K\to\pi\nu\overline{\nu}$ decays and in particular the $B$-meson system are much more promising in this respect. After a brief look at the $K$ system, selected aspects of CP-violating effects in $B$ decays are discussed. It is pointed out that combined branching ratios for $B\to\pi K$ modes, which have been observed recently by the CLEO collaboration, may allow to derive stringent constraints on the CKM angle $\gamma$ that could open a window to new physics.
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