Microscopic derivation of pion-nucleon and pion-Delta scattering lengths

Abstract

A general expression for the $\pi -N$ and $\pi -\Delta$ scattering lengths is derived in the framework of a microscopic calculation. Annihilation, negative energy wave-functions and spontaneous chiral symmetry are included consistently. The point-like limit is used to calculate the scattering lengths.

Clarified version of the preprint. 1 elsart manuscript, 2 eps figures

References in corpus (6)

• Chirally symmetric quark description of low energy π-πscattering
• QCD based quark description of pi-pi scattering up to the sigma and rho region
• Analytic proof that the Quark Model complies with the PCAC theorems
• Vacuum replicas in QCD
• Recoupling matrix elements and decay
• Chiral corrections to baryon properties with composite pions

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• Mesons and tachyons with confinement and chiral restoration, and NA60
• Prediction of the masses and decay processes of strange, charmed and bottomed pentaquarks from the linear molecular crypto-heptaquark model
• The Pentaquarks in the Linear Molecular Heptaquark Model
• Are the Theta+(1540), Xi--(1860) and D*-p(3100) Pentaquarks or Heptaquarks?