Radiative Weak Decays of Charm Mesons

Details Radiative Weak Decays of Charm Mesons Radiative Weak Decays of Charm Mesons

1995-02-16

arxiv.org/abs/hep-ph/9502329v1

Phys.Rev.D52:6383-6399,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

44 pages, LaTeX, 4 figures (not included)

Scientific paper

10.1103/PhysRevD.52.6383

We address Standard Model predictions for flavor-changing radiative transitions of the pseudoscalar charm mesons. Short-distance contributions in $D$ radiative transitions are contrasted with those in B decays. A full analysis is presented of the $c\to u+\gamma$ electromagnetic penguin amplitude with QCD radiative corrections included. Given the importance of long-range effects for the charm sector, special attention is paid to such contributions as the vector dominance and pole amplitudes. A number of two-body final states in exclusive charm radiative decays is considered and the corresponding branching ratio predictions are given.

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