Analysis of the electromagnetic form factors and the radiative decays of the vector heavy-light mesons

Abstract: In this article, we analyze the electromagnetic form factors of the vector heavy-light mesons to the pseudoscalar heavy-light mesons in the framework of three-point QCD sum rules, where the contributions of vacuum condensate terms $\langle\overline{q}q\rangle$, $\langle\overline{q}g_{s}\sigma Gq\rangle$, $\langle g_{s}<sup>{2}G<sup>{2}\rangle$, $\langle f<sup>{3}G<sup>{3}\rangle$ and $$\langle\overline{q}q\rangle\langle g_{s}<sup>{2}G<sup>{2}\rangle$$ are considered. With these results, we also obtain the radiative decay widths of the vector heavy-light mesons and then compare our results with those of other collaboration's. The final results about the radiative decay widths are $$\Gamma(D^{*0}\to D<sup>{0}\gamma)=1.74<sup>{+0.40}_{-0.37}$$ keV, $$\Gamma(D^{*+}\to D<sup>{+}\gamma)=0.17<sup>{+0.08}_{-0.07}$$ keV, $$\Gamma(D_{s}^{*}\to D_{s}\gamma)=0.029<sup>{+0.009}_{-0.008}$$ keV, $$\Gamma(B^{*0}\to B<sup>{0}\gamma)=0.018<sup>{+0.006}_{-0.005}$$ keV, $$\Gamma(B^{*+}\to B<sup>{+}\gamma)=0.015<sup>{+0.007}_{-0.007}$$ keV and $$\Gamma(B^{*}_{s}\to B_{s}\gamma)=0.016<sup>{+0.003}_{-0.005}$$ keV.