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(D* to D + gamma) and (B* to B + gamma) as derived from QCD Sum Rules
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abstract
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.
Forward citations
Cited by 3 Pith papers
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Electromagnetic polarizabilities of the triplet hadrons in heavy hadron chiral perturbation theory
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Relativistic effects in $\mbox{M1}$ radiative decays of heavy-light mesons
A relativistic potential model, with all parameters taken from meson masses, predicts M1 radiative widths for D and D_s mesons and gives a B_s hyperfine splitting close to the new CMS measurement.
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