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$D D A$, $D^{*}D^{*}A$ and $D^{*} D A$ vertices in the light-cone QCD and considering $B^0\to {K}_{1}^{+} \pi^-$ branching ratio
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abstract
We investigate the strong coupling constants of $D D A$, $D^{*}D^{*}A$ and $D^{*} D A$ vertices in the framework of the light-cone QCD sum rules, where $A$ is an axial vector meson such as $a_1, b_1, K_{1A}, K_{1B}, K_1(1270)$ and $K_1(1400)$. Using the strong coupling constants of $D_s D K_1$, $D_s^* D K_1$ and $D_s^* D^* K_1$ vertices for $K_1(1270)$ and $K_1(1400)$ mesons, we evaluated the branching ratios of the non-leptonic decays $B^0\to {K}_{1}^{+}(1270,1400) \pi^-$. Our results for the branching ratios of these decays are a good agreement with the experimental values.
Forward citations
Cited by 1 Pith paper
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The production and decay of $X_0(2900)$ state with different interpretation
A QCD-sum-rule plus rescattering calculation finds that X0(2900) as a D*bar K* molecule reproduces the measured B+ to D+X0 branching fraction and X0 to DK width, though a compact tetraquark remains allowed within errors.
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