The decay constants for the strong off-shell ${\mathit{B}}^{\mathrm{*}}$→${\mathit{B}}_{\mathrm{\rho }}$ and ${\mathit{D}}^{\mathrm{*}}$→${\mathit{D}}_{\mathrm{\rho }}$ decays are calculated in the framework of light cone QCD sum rules. The results are shown to be in agreement with the predictions of the ‘‘classical’’ sum rules method, and with those of the vector dominance model. © 1995 The American Physical Society.

• Received 30 May 1995

DOI:https://doi.org/10.1103/PhysRevD.53.355