Coupling constants of D*DsK and Ds*DK processes

AUTOR(ES)

Bracco, M. E., Lozéa, A., Cerqueira Jr., A., Chiapparini, M., Nielsen, M.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2007-03

RESUMO

We calculate the coupling constants of D*Ds K and Ds*DK vertices using the QCD sum rules technique. We compare our results with results obtained in the limit of SU(4) symmetry and we found that the symmetry is broken at the order of 40%.

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