
The space of local operators in the SU(2) invariant Thirring model (SU(2) ITM) is studied by the form factor bootstrap method. By constructing sets of form factors explicitly we define a susbspace of operators which has the same character as the level one integrable highest weight representation of \hat{sl_2}. This makes a correspondence between this subspace and the chiral space of local operators in the underlying conformal field theory, the su(2) Wess-Zumino-Witten model at level one.
19 pages, typos are corrected, Accepted for publication in Comm. Math. Phys
FOS: Physical sciences, Model quantum field theories, Groups and algebras in quantum theory and relations with integrable systems, Mathematical Physics (math-ph), 81T40,33C70,05A30, conformal field theory, Two-dimensional field theories, conformal field theories, etc. in quantum mechanics, Mathematics - Quantum Algebra, Applications of Lie groups to the sciences; explicit representations, FOS: Mathematics, Quantum Algebra (math.QA), Applications of basic hypergeometric functions, form factor bootstrap method, level one integrable highest weight representation, Mathematical Physics
FOS: Physical sciences, Model quantum field theories, Groups and algebras in quantum theory and relations with integrable systems, Mathematical Physics (math-ph), 81T40,33C70,05A30, conformal field theory, Two-dimensional field theories, conformal field theories, etc. in quantum mechanics, Mathematics - Quantum Algebra, Applications of Lie groups to the sciences; explicit representations, FOS: Mathematics, Quantum Algebra (math.QA), Applications of basic hypergeometric functions, form factor bootstrap method, level one integrable highest weight representation, Mathematical Physics
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