Stringification of Chiral Dynamics: Wess-Zumino interaction
  The QCD hadronic string is supplemented with the reparameterization-invariant boundary interaction to background chiral fields associated with pions in a way compatible with the conformal symmetry. It allows the full reconstruction of the P-even part of the Chiral Lagrangian in a good agreement with the phenomenology of P-even meson interactions. The modification of boundary interaction necessary to induce the parity-odd Chiral Dynamics (WZW action) is outlined. 
A.A. Andrianov (1), D. Espriu (2), A. Prats (2) ((1) St.Petersburg   State University & INFN, Bologna, (2) Departament d'ECM...