The rare decays of D mesons

Abstract

The flavor changing transitions in the c->u gamma, c->u gamma gamma and c->u l+ l- offer the possibility to search for new physics in the charm sector. We investigate dominant decay mechanisms in the radiative decays D->V gamma, D->P(V) l+ l-, D->gamma gamma and we discuss chances to see physics beyond the standard model in these decays. In addition, we analyze Cabibbo allowed D->K pi gamma decays with nonresonant K pi, and we probe the role of light vector mesons in these decays.

5 pages, no figures, invited talk given by S. Fajfer at the 5th International Conference on Hyperons, Charm and Beauty Hadrons, Vancouver, June 2002

References in corpus (4)

• Rare charm meson decays D->Pl^+l^- and c->ul^+l^- in SM and MSSM
• $c\to u\gamma$ in the minimal supersymmetric standard model
• The Rare Decay D^0 -> gamma gamma
• Constraints on heavy Z' couplings from ΔS = 2 B^- -> K^- K^- π^+ decay

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• Measurement of the $D^0\to K^{-}{\pi }^{+}{e}^{+}{e}^{-}$ branching fraction and search for $D^0\to {\pi }^{+}{\pi }^{-}{e}^{+}{e}^{-}$ and $D^0\to K^{+}{K}^{-}{e}^{+}{e}^{-}$ decays at Belle