Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-09-09
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, LaTeX, no figures. Invited plenary talk given at the 7th International Symposium on Heavy Flavor Physics, Santa Barb
Scientific paper
Recent developments concerning CP violation beyond the Standard Model are reviewed. The central target of this presentation is the $B$ system, as it plays an outstanding role in the extraction of CKM phases. Besides a general discussion of the appearance of new physics in the corresponding CP-violating asymmetries through $B^0_q$--$\bar{B^0_q}$ mixing $(q\in\{d,s\})$, it is emphasized that CP violation in non-leptonic penguin modes, e.g. in $B_d\to\phi K_{S}$, offers a powerful tool to probe physics beyond the Standard Model. In this respect $B\to\pi K$ modes, which have been observed recently by the CLEO collaboration, may also turn out to be very useful. Their combined branching ratios allow us to constrain the CKM angle $\gamma$ and may indicate the presence of physics beyond the Standard Model.
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