%0 Journal Article
%T Form Factors of Exponential Fields for the Two-parametric Family of Integrable Models
%+ Laboratoire de Physique Mathématique et Théorique (PMT)
%A Fateev, Vladimir
%A Lashkevich, M.
%Z 37 pages, 3 figures; some misprints corrected; Eq. (B.12b) corrected
%< avec comité de lecture
%Z 04-002
%@ 0550-3213
%J Nuclear Physics B
%I Elsevier
%V 696
%N 3
%P 301 -350
%8 2004-06-25
%D 2004
%Z hep-th/0402082
%R 10.1016/j.nuclphysb.2004.06.043
%K PACS: 11.10.Kk
%K 11.55.Ds
%Z Physics [physics]/High Energy Physics - Theory [hep-th]
%Z Nonlinear Sciences [physics]/Exactly Solvable and Integrable Systems [nlin.SI]Journal articles
%X A two-parametric family of integrable models (the SS model) that contains as particular cases several well known integrable quantum Field theories is considered. After the quantum group restrictionit describes a wide class of integrable perturbed conformal field theories. Exponential Fields in the SS model are closely related to the primary fields in these perturbed theories. We use the bosonization approach to derive an integral representation for the form factors of the exponential fields in the SS model. The same representations for the sausage model and the cosine-cosine model are obtained as limiting cases. The results are tested at the special points, where the theory contains free particles.
%G English
%L hal-00300688
%U https://hal.science/hal-00300688
%~ CNRS
%~ UNIV-MONTP2
%~ UNIV-MONTPELLIER
%~ UM1-UM2