On S-matrix factorization of the Landau-Lifshitz model

We consider the three-particle scattering S-matrix for the Landau-Lifshitz model by directly computing the set of the Feynman diagrams up to the second order. We show, following the analogous computations for the non-linear Schrdinger model [1, 2], that the three-particle S-matrix is factorizable in the first non-trivial order.FAPESP[05/05147-3]Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FAPESP[06/56056-0]Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FAPESP[06/02939-9]Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CNPqConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)PROSUL[490134/2006-8]PROSU