Analysis of the vertices $DDV$ and $D^{\ast }DV$ with light-cone QCD sum rules

Abstract

In this article, we study the vertices $DDV$ and $D^{\ast }DV$ with the light-cone QCD sum rules. The strong coupling constants $g_{DDV}$ and $f_{D^{\ast }DV}$ play an important role in understanding the final-state re-scattering effects in the hadronic B decays. They are related to the basic parameters $\beta$ and $\lambda$ respectively in the heavy quark effective Lagrangian, our numerical values are smaller than the existing estimations.

16 pages, 6 figures, revised version

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• Analysis of the $\Sigma -n$ form factors with light-cone QCD sum rules
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Cited by in corpus (23)

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• Decay widths of the spin-2 partners of the X(3872)
• $J/\psi ({\eta }_c)N$ and ${\rm Y}({\eta }_b)N$ cross sections
• ρD^*D^* vertex from QCD sum rules
• $D^{\ast }D\rho$ vertex from QCD sum rules
• Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons
• $B_s^{\ast }BK$ vertex from QCD sum rules
• Strong coupling constants of bottom and charmed mesons with scalar, pseudoscalar and axial vector kaons
• Strong decay of the heavy tensor mesons with QCD sum rules
• $g_{D_s^{\ast }D{K}^{\ast }(892)}$ and $g_{B_s^{\ast }B{K}^{\ast }(892)}$ coupling constants in QCD sum rules
• Analysis of hadronic coupling constants $G_{B_c^{\ast }{B}_c{\rm Y}}$, $G_{B_c^{\ast }{B}_{c}J/\psi }$, $G_{B_c{B}_c{\rm Y}}$ and $G_{B_c{B}_{c}J/\psi }$ with QCD sum rules
• Analysis of $D_{s}D{K}^{\ast }$ and $D_s{D}^{\ast }{K}^{\ast }$ vertices and branching ratio of $B^{+}\to {K^{\ast }}^0{\pi }^{+}$
• The strong vertices of charmed mesons $D$, $D^{\ast }$ and charmonia $J/\psi$, ${\eta }_c$
• Analysis of the vertex $D^{\ast }{D}^{\ast }\rho$ with the light-cone QCD sum rules
• Final state interactions in the decay $B^0\to {\eta }_c{K}^{\ast }$
• Final-state interactions in the decays $B^0\to {\chi }_{c0}{K}^{\ast 0}$ and $B^{+}\to {\chi }_{c0}{K}^{\ast +}$
• The strong vertices of bottom mesons $B$, $B^{\ast }$ and bottomonia ${\rm Y}$, ${\eta }_b$
• $D^{\ast }D\rho$ and $B^{\ast }B\rho$ strong couplings in light-cone sum rules
• Analysis of the strong vertices ${\Lambda }_c{D}^{(\ast )}{N}^{\ast }(1535)$ and ${\Lambda }_b{B}^{(\ast )}{N}^{\ast }(1535)$ in QCD sum rules
• Strong coupling constant of vector bottomonium to the pseudoscalar and vector $B_c$ mesons via QCD sum rules
• Heavy-meson chiral Lagrangians, effective flavored couplings, SU(4) flavor breaking and their consequences
• An improved calculation of the $D_{(s)}^{\ast }{D}_{(s)}V$ and $B_{(s)}^{\ast }{B}_{(s)}V$ couplings from light-cone sum rules
• Strong coupling constant of h${}_b$ vector to the pseudoscalar and vector $B_c$ mesons in QCD sum rules