Exact form factors for the scaling Z{N}-Ising and the affine A{N-1}-Toda quantum field theories

Abstract

Previous results on form factors for the scaling Ising and the sinh-Gordon models are extended to general $Z_N$-Ising and affine $A_{N-1}$-Toda quantum field theories. In particular result for order, disorder parameters and para-fermi fields ${\sigma }_Q(x),{\mu }_{\tilde{Q}}(x)$ and ${\psi }_Q(x)$ are presented for the $Z_N$-model. For the $A_{N-1}$-Toda model all form factors for exponentials of the Toda fields are proposed. The quantum field equation of motion is proved and the mass and wave function renormalization are calculated exactly.

Latex, 11 pages

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