Strong $D_s^{\ast }{D}_s{\eta }^{(\prime )}$ and $B_s^{\ast }{B}_s{\eta }^{(\prime )}$ vertices from QCD light-cone sum rules

Abstract

The strong $D_s^{\ast }{D}_s{\eta }^{(\prime )}$ and $B_s^{\ast }{B}_s{\eta }^{(\prime )}$ vertices are studied and the relevant couplings are calculated in the context of the light-cone QCD sum rule method with twist-4 accuracy by including the next-to-leading order corrections. In the analysis, both the quark and gluon components of the $\eta$ and ${\eta }^{\prime }$ mesons and the axial anomaly corrected higher twist distributions are included.

15 Pages and 6 Figures

References in corpus (11)

• Light Cone Sum Rules for the pi0-gamma*-gamma Form Factor Revisited
• Analysis of the masses and decay constants of the heavy-light mesons with QCD sum rules
• Determination of the magnetic susceptibility of the quark condensate using radiative heavy meson decays
• Transition form factors ${\gamma }^{\ast }\gamma \to \eta$ and ${\gamma }^{\ast }\gamma \to {\eta }^{\prime }$ in QCD
• Decay constants of heavy pseudoscalar mesons from QCD sum rules
• Gluonic contribution to $B\to {\eta }^{(\prime )}$ form factors
• Form factors of B, Bs -> eta, eta' and D, Ds -> eta, eta' transitions from QCD light-cone sum rules
• Analysis of the strong coupling constant $G_{D_s^{\ast }{D}_s\varphi }$ and the decay width of $D_s^{\ast }\to D_s\gamma$ with QCD sum rules
• Measurement of Bs0 --> Ds(*)+ Ds(*)- Branching Ratios
• Measurements of $B\to \bar{D}{D}_{s0}^{\ast +}(2317)$ decay rates and a search for isospin partners of the $D_{s0}^{\ast +}(2317)$
• Measurement of the branching fraction Br(Bs -> Ds(*) Ds(*))

Cited by in corpus (8)

• Application of the QCD light cone sum rule to tetraquarks: the strong vertices $X_b{X}_b\rho$ and $X_c{X}_c\rho$
• Nature of the vector resonance $Y(2175)$
• Open charm-bottom scalar tetraquarks and their strong decays
• Testing the doubly charged charm-strange tetraquarks
• Light axial-vector and vector resonances $X(2100)$ and $X(2239)$
• Resonance $X(3960)$ as a hidden charm-strange scalar tetraquark
• ${\chi }_c$ decays and the gluon content of the ${\eta }^{\prime }$, $\eta$ mesons
• Near-threshold structures in the $D_s^{+}{D}_s^{-}$ mass distribution of the decay $B^{+}\to D_s^{+}{D}_s^{-}{K}^{+}$