${\Sigma }_Q{\Lambda }_Q\pi$ Coupling Constant in Light Cone QCD Sum Rules

Abstract

The strong coupling constants $g_{{\Sigma }_Q{\Lambda }_Q\pi }$ ($Q=b$ and $c$) are studied in the framework of the light cone QCD sum rules using the most general form of the baryonic currents. The predicted coupling constants are used to estimate the decay widths for the ${\Sigma }_Q⟶{\Lambda }_Q\pi$ decays which are compared with the predictions of the other approaches and existing experimental data.

19 Pages, 4 Figures and one Table

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Cited by in corpus (20)

• Radiative Decays of the Heavy Flavored Baryons in Light Cone QCD Sum Rules
• Strong coupling constants of light pseudoscalar mesons with heavy baryons in QCD
• Semileptonic ${\Lambda }_{b,c}$ to Nucleon Transitions in Full QCD at Light Cone
• Structure of the ${\Xi }_b(6227{)}^{-}$ Resonance
• Determination of the quantum numbers of ${\Sigma }_b(6097{)}^{\pm }$ via their strong decays
• The strong ${\Lambda }_{b}NB$ and ${\Lambda }_{c}ND$ vertices
• ${\Lambda }_b(6146{)}^0$ state newly observed by LHCb
• Study of the strong ${\Sigma }_b\to {\Lambda }_b\pi$ and ${\Sigma }_b^{\ast }\to {\Lambda }_b\pi$ in a non-relativistic quark model
• Probing $R$-parity violation in $B$-meson decays to a baryon and a light neutralino
• Semileptonic transition of ${\Sigma }_b$ to $\Sigma$ in Light Cone QCD Sum Rules
• Strong couplings of negative and positive parity nucleons to the heavy baryons and mesons
• ${\Lambda }_c{\Sigma }_c\pi$ coupling and ${\Sigma }_c\to {\Lambda }_c\pi$ decay in lattice QCD
• Analysis of the strong coupling form factors of ${\Sigma }_{b}NB$ and ${\Sigma }_{c}ND$ in QCD sum rules
• Strong decays of the low-lying $1P$- and $1D$-wave ${\Sigma }_c$ baryons
• Tree Level Semileptonic ${\Sigma }_b$ to Nucleon Decay in Light Cone QCD Sum Rules
• Analysis of the strong vertices of ${\Sigma }_c\Delta D^{\ast }$ and ${\Sigma }_b\Delta B^{\ast }$ in QCD sum rules
• Axial-vector transition form factors of the singly heavy baryons
• The $g_{{\Sigma }_Q{\Sigma }_Q\pi }$ Coupling Constant via Light Cone QCD Sum Rules
• Analysis of the vertexes ${\Omega }_Q^{\ast }{\Omega }_Q^{\ast }\varphi$, ${\Omega }_Q^{\ast }{\Xi }_Q^{\ast }{K}^{\ast }$, ${\Xi }_Q^{\ast }{\Sigma }_Q^{\ast }{K}^{\ast }$ and ${\Sigma }_Q^{\ast }{\Sigma }_Q^{\ast }\rho$ with the light-cone QCD sum rules
• Flavor Changing Neutral Currents Transition of the ${\Sigma }_Q$ to Nucleon in Full QCD and Heavy Quark Effective Theory