Advanced series in mathematical physics
FORM FACTORS IN SU(2)-INVARIANT THIRRING MODEL
Abstract
Integral formulae for form factors of a large family of charged local operators in SU (2) invariant Thirring model are given extending Smirnov's construction of form factors of chargeless local operators in the sine-Gordon model.New abelian symmetry acting on this family of local operators is found.It creates Lukyanov's operators which are not in the above family of local operators in general.