$D^0-\overline{D^0}$ Mixing and Rare Charm Decays

Abstract

We review the current status of flavor-changing neutral currents in the charm sector. We focus on the standard-model predictions and identify the main sources of theoretical uncertainties in both charm mixing and rare charm decays. The potential of these observables for constraining short-distance physics in the standard model and its extensions is compromised by the presence of large nonperturbative effects. We examine the possible discovery windows in which short-distance physics can be tested and study the effects of various extensions of the standard model. The current experimental situation and future prospects are reviewed.

62 pages, 14 figures. To appear in Annual Review of Nuclear and Particle Science, Volume 53, December 2003

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