A chiral invariant dual model

Abstract

Unequal intercept dual N-point functions are found which satisfy the Adler condition for all the external pion lines. With the no-exotics hypothesis, a chiral invariant model is constructed which, in the linear expansion of the invariants, exactly coincides with the non-linear σ model with ( 1 2 , 1 2 ) breaking. Factorization yields a unique π, A 1, ϱ, f o and the standard difficulties with tachyons and ghosts. The model can be extended to axial and vector currents with the correct soft couplings, massive kaons, and higher order dual diagrams.