Meson-baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking

Abstract

We investigate the strong coupling constants for the baryon octet-octet, decuplet-octet, and decuplet-decuplet vertices with pseudoscalar mesons within a general framework of the chiral quark-soliton model, taking into account the effects of flavor SU(3) symmetry breaking to linear order in the expansion of the strange current quark mass. All relevant dynamical parameters are fixed by using the experimental data on hyperon semileptonic decays and the singlet axial-vector constant of the nucleon. The results of the strong coupling constants for the baryon octet and the pseudoscalar meson octet are compared with those determined from the Jülich-Bonn potential and the Nijmegen extended soft-core potential for hyperon-nucleon scattering. The results of the strong decay widths of the baryon decuplet are in good agreement with the experimental data. The effects of $S{U}_f(3)$ symmetry breaking are sizable on the ${\eta }^{\prime }$ coupling constants. We predict also the strong coupling constants for the $\Omega$ baryons.

10 pages

References in corpus (6)

• Most Strange Dibaryon from Lattice QCD
• Observation of an excited ${\Omega }^{-}$ baryon
• $N\Omega$ interaction: meson exchanges, inelastic channels, and quasibound state
• Scattering of decuplet baryons in chiral effective field theory
• Electromagnetic mass differences of SU(3) baryons within a chiral soliton model
• Quark spin content of the proton, hyperon semileptonic decays, and the decay width of the ${\Theta }^{+}$ pentaquark

Cited by in corpus (13)

• Testing SU(3) Flavor Symmetry in Semileptonic and Two-body Nonleptonic Decays of Hyperons
• Contact interaction analysis of octet baryon axialvector and pseudoscalar form factors
• Exploring the effects of Delta Baryons in magnetars
• Electromagnetic transition form factors, $E2/M1$ and $C2/M1$ ratios of the baryon decuplet
• Eta-nucleon and eta-prime-nucleon coupling constants in QCD and the role of gluons
• Axial-vector transition form factors of the baryon octet to the baryon decuplet with flavor SU(3) symmetry breaking
• Baryonic matter and the medium modification of the baryon masses
• Axial-vector transition form factors of the singly heavy baryons
• Strongly interacting matter in extreme magnetic fields
• Hidden charm ${\mathcal{P}}_{cs}(4338{)}^0$ production in baryonic $B^{-}\to J/\psi \Lambda \bar{p}$ decay
• Radiative decays of the $\Omega (2012)$ as a hadronic molecule
• New narrow nucleon resonances $N^{\ast }(1685)$ and $N^{\ast }(1726)$ within the chiral quark-soliton model
• Structure of the $\Omega$ baryon and the kaon cloud