Form factors in the SS model and its RSOS restrictions
arXiv:hep-th/0405218
Abstract
New integral representations for form factors in the two parametric SS model are proposed. Some form factors in the parafermionic sine-Gordon model and in an integrable perturbation of SU(2) coset conformal field theories are straightforwardly obtained by different quantum group restrictions. Numerical checks on the value of the central charge are performed.
arXiv comment16 pages, 5 tables; v2:misprints corrected, clearer notations, discussion extended; v4: formula for the SS trace operator corrected, additional numerical checks on the central charge, proposal for p-function of exponential fields now coherent with the trace, submitted to NPB. v5:table 1 added, references added, diverse comments including Comment on the energy of the vacuum added
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