$\pi B_8{B}_8$ and $\sigma B_8{B}_8$ couplings from a chiral quark potential model

Abstract

From an SU(2)$\otimes$SU(2) chiral quark potential model incorporating spontaneous chiral symmetry breaking the asymptotic $\pi$ and $\sigma$ exchange pieces of the $NN$ potential are generated. From them the $\pi NN$ and $\sigma NN$ coupling constants can be extracted. The generalization to SU(3)$\otimes$SU(3) allows for a determination of $\pi B_8{B}_8$ and coupling constants according to exact SU(3) hadron symmetry. The implementation of the values of the couplings at $Q^2=0$ provided by QCD sum rules and/or phenomenology makes also feasible the extraction of the meson-baryon-baryon form factors. In this manner a quite complete knowledge of the couplings may be attained.

21 pages, 4 figures, 3 tables

References in corpus (11)

• Quark-model study of few-baryon systems
• Baryon-baryon interactions in the SU6 quark model and their applications to light nuclear systems
• Consistent Analysis of the Spin Content of the Nucleon
• Meson-baryon coupling constants from a chiral-invariant SU(3) Lagrangian and application to NN scattering
• Strong Pionic Decays From a Spectroscopic Quark Model
• The nucleon-sigma coupling constant in QCD Sum Rules
• Axial Transition Form Factors and Pion Decay of Baryon Resonances
• Chiral quark model with relativistic kinematics
• Scalar-Meson - Baryon Coupling Constants in QCD Sum Rules
• Microscopic $NN\to N{N}^{\ast }(1440)$ transition potential: Determination of $\pi N{N}^{\ast }(1440)$ and $\sigma N{N}^{\ast }(1440)$ coupling constants
• QCD Sum Rules and Chiral Symmetry Breaking

Cited by in corpus (1)

• Renormalization vs Strong Form Factors for One Boson Exchange Potentials