The $B^{+(0)}\to {\bar{D}}^{0(-)}{D}_{s0}^{\ast }(2317{)}^{+}$ decays and the molecular structure of $D_{s0}^{\ast }(2317)$

Abstract

We have conducted a study of the $B^{+(0)}\to {\bar{D}}^{0(-)}{D}_{s0}^{\ast }(2317{)}^{+}$ reactions from the perspective that the $D_{s0}^{\ast }(2317)$ resonance is a molecular state of the $DK$ and $D_s\eta$ components. We have followed a method to evaluate the branching fractions obtaining information from the experimental data on the $B^{+}\to {\bar{D}}^0{K}^{+}{D}^0$, $B^{+}\to {\bar{D}}^0{K}^0{D}^{+}$, $B^0\to D^{-}{K}^{+}{D}^0$, $B^0\to D^{-}{K}^0{D}^{+}$ reactions, which have the $D^0{K}^{+}$ and $D^{+}{K}^0$ pairs in the final state. The approach concentrates the dynamics of the weak process in the branching ratios of these reactions and pays attention to the propagation of the $DK$ components and their strong interaction to form the $D_{s0}^{\ast }(2317)$ resonance. By means of two free parameters, we are able to describe these six rates, showing consistency with the molecular picture of the $D_{s0}^{\ast }(2317)$ state.

7 pages, 4 figures; v2: discussions added, references added, version published in Eur. Phys. J. A

References in corpus (12)

• Dynamically Generated Open and Hidden Charm Meson Systems
• Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture
• Dynamically generated 1^+ heavy mesons
• $D_s$ mesons with $DK$ and $D^{\ast }K$ scattering near threshold
• Computation of the O(p^6) order low-energy constants: an update
• Masses and decay constants of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ from $N_f=2$ lattice QCD close to the physical point
• Ds0*(2317) and Ds1(2460) mesons in two-body B-meson decays
• Dalitz plot analyses of $B^0\to D^{-}{D}^0{K}^{+}$ and $B^{+}\to {\overline{D}}^0{D}^0{K}^{+}$ decays
• Radiative decays of the $D_{s0}(2317)$, $D_{s1}(2460)$ and the related strong coupling constants
• Study on Decays of $D_{sJ}^{\ast }(2317)$ and $D_{sJ}(2460)$ in terms of the CQM Model
• Production of P-wave Charmed Mesons in Hadronic B Decays
• $D_{s0}^{\ast \pm }(2317)$ and $KD$ scattering from $B_s^0$ decay