Recognition: unknown
(D* to D + gamma) and (B* to B + gamma) as derived from QCD Sum Rules
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The method of QCD sum rules in the presence of the external electromagnetic $F_{\mu\nu}$ field is used to analyze radiative decays of charmed or bottomed mesons such as $D^{\ast}\to D\gamma$ and $B^{\ast}\to B\gamma$, with the susceptibilities obtained previously from the study of baryon magnetic moments. Our predictions on $D^{\ast}$ decays agree very well with the experimental data. There are differences among the various theoretical predictions on $B^{\ast}$ decays but the data are not yet available.
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Forward citations
Cited by 2 Pith papers
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Hunting for $B\bar B$ molecular state $X_{b0}$ via radiative transition of $\Upsilon(10753)$
The decay Υ(10753) → γ X_b0 is predicted to have partial width 0.2-1.5 keV and branching fraction 10^{-6} to 10^{-5} for binding energies 0-10 MeV, dominated by B1(') meson loops.
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