Electrically charged topological solitons

Two new families of T-dual integrable models of dyonic type are constructed . They represent specific A(n)((1)) singular non-abelian affine Toda models having U(1) global symmetry. Their I-soliton spectrum contains both neutra l and U(I)-charged topological solitons sharing the main properties of 4-di mensional Yang-Mills-Higgs monopoles and dyons. The semiclassical quantizat ion of these solutions as well as the exact counterterms and the coupling c onstant renormalization are studied. (C) 2001 Elsevier Science B.V. All rig hts reserved.