Radiative $B^{\ast }B\gamma$ and $D^{\ast }D\gamma$ coupling constants in light cone QCD sum rules

Abstract

The radiative decays $B^{\ast }(D^{\ast })\to B(D)\gamma$ are investigated in the framework of light cone QCD sum rules. The transition amplitude and decay rates are estimated.It is shown that our results on branching ratios of D meson decays are in good agreement with the existing experimental data.

13 pages, Latex, 3 figures

References in corpus (7)

• $D^{\ast }D\pi$ and $B^{\ast }B\pi$ couplings in QCD
• Exclusive Radiative B-Decays in the Light-Cone QCD Sum Rule Approach
• QCD Calculation of the $B\to \pi ,K$ Form Factors
• Calculation of Long-Distance Effects in Exclusive Weak Radiative Decays of B-Mesons
• Estimates of the Weak Annihilation Contributions to the Decays $B\to \rho +\gamma$ and $B\to \omega +\gamma$
• Radiative Decay $B\to l\nu \gamma$ in the Light Cone QCD Approach
• $\pi$-$A_1$ electromagnetic form factors and light-cone QCD sum rules

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