S-Matrix Identities in Affine Toda Field Theories
arXiv:hep-th/9908184 · doi:10.1016/S0370-2693(99)01226-5
Abstract
We note that S-matrix/conserved charge identities in affine Toda field theories of the type recently noted by Khastgir can be put on a more systematic footing. This makes use of a result first found by Ravanini, Tateo and Valleriani for theories based on the simply-laced Lie algebras (A,D and E) which we extend to the nonsimply-laced case. We also present the generalisation to nonsimply-laced cases of the observation - for simply-laced situations - that the conserved charges form components of the eigenvectors of the Cartan matrix.
6 pages, LaTeX 2e; derivation of generalised RTV formula revised, some typos corrected