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arXiv · hep-ph/9808369

Radiative decays of D mesons

S. Fajfer·S. Prelovsek·P. Singer
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Abstract

The short-distance contribution due to the $c\to uγ$ penguin as well as long-distance contributions are considered in an analysis of $D\to Vγ$ decays, the latter being dominant. The matrix elements for nine $D\to Vγ$ transitions are calculated using a hybrid model which combines heavy quark effective theory and the chiral Lagrangian. We present the expected range of the branching ratios for these decays, the most frequent ones $D^0\to \bar{K}^{*0}γ$ and $D^+_s \to ρ^+γ$, being a few times $10^{-4}$.

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S. Fajfer, S. Prelovsek, P. Singer. 1998-10-16. Radiative decays of D mesons. https://doi.org/10.1016/s0920-5632(99)00341-2

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