
We construct a set of non-rational conformal field theories that consist of deformations of Toda field theory for sl(n). Besides conformal invariance, the theories still enjoy a remnant infinite-dimensional affine symmetry. The case n=3 is used to illustrate this phenomenon, together with further deformations that yield enhanced Kac-Moody symmetry algebras. For generic n we compute N-point correlation functions on the Riemann sphere and show that these can be expressed in terms of sl(n) Toda field theory correlation functions.
27 pages. Typos corrected. Discussion added
High Energy Physics - Theory, Physique, Algebras de vertices, FOS: Physical sciences, Généralités, Toda Field Theory, Teoria de campos conforme, High Energy Physics - Theory (hep-th), https://purl.org/becyt/ford/1.3, W_N symmetry, Non-rational Conformal Field Theory, https://purl.org/becyt/ford/1
High Energy Physics - Theory, Physique, Algebras de vertices, FOS: Physical sciences, Généralités, Toda Field Theory, Teoria de campos conforme, High Energy Physics - Theory (hep-th), https://purl.org/becyt/ford/1.3, W_N symmetry, Non-rational Conformal Field Theory, https://purl.org/becyt/ford/1
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