Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-09-18
Nucl.Phys.B577:390-404,2000
Physics
High Energy Physics
High Energy Physics - Theory
13 pages, LaTeX; some references added and some typos corrected
Scientific paper
10.1016/S0550-3213(00)00104-8
Soliton time-delays and the semiclassical limit for soliton S-matrices are calculated for non-simply laced Affine Toda Field Theories. The phase shift is written as a sum over bilinears on the soliton conserved charges. The results apply to any two solitons of any Affine Toda Field Theory. As a by-product, a general expression for the number of bound states and the values of the coupling in which the S-matrix can be diagonal are obtained. In order to arrive at these results, a vertex operator is constructed, in the principal gradation, for non-simply laced affine Lie algebras, extending the previous constructions for simply laced and twisted affine Lie algebras.
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