%0 Journal Article
%T Radiative decays of D mesons
%A S. Fajfer
%A S. Prelovsek
%A P. Singer
%J Physics
%D 1998
%I arXiv
%R 10.1016/S0920-5632(99)00341-2
%X The short-distance contribution due to the $c\to u\gamma$ penguin as well as long-distance contributions are considered in an analysis of $D\to V\gamma$ decays, the latter being dominant. The matrix elements for nine $D\to V\gamma$ 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 $D^0\to \bar{K}^{*0}\gamma$ and $D^+_s \to \rho^+\gamma$, being a few times $10^{-4}$.
%U http://arxiv.org/abs/hep-ph/9808369v2