https://doi.org/10.1140/epjc/s2005-02243-8
Theoretical Physics
Color suppressed contributions to the decay modes 
, 
, and 
1
Department of Physics, University of Oslo, Blindern, P.O. Box 1048, 0316, Oslo, Norway
2
Department of Physics, University of Ljubljana, Jadranska 19, 1000, Ljubljana, Slovenia
3
J. Stefan Institute, Jamova 39, P. O. Box 3000, 1001, Ljubljana, Slovenia
* e-mail: j.o.eeg@fys.uio.no
The amplitudes for decays of the type , have no factorizable contributions, while , and have relatively small factorizable contributions through the annihilation mechanism. The dominant contributions to the decay amplitudes arise from chiral loop contributions and tree level amplitudes which can be obtained in terms of soft gluon emissions forming a gluon condensate. We predict that the branching ratios for the processes 
, 
and 
are all of order (2- 3) x 10-4, while 
, 
and 
are of order (4- 7) x 10-3. We obtain branching ratios for two D
*’s in the final state of order two times bigger.
© Springer-Verlag, 2005
