%0 Journal Article
%T Amplitude Zeroes in Collinear Processes or What Is Left from a Factorizable 2d Model in Higher Dimensions
%A G. Gat
%A B. Rosenstein
%J Physics
%D 1993
%I arXiv
%R 10.1016/0370-2693(93)90499-8
%X We show that for collinear processes, i.e. processes where the incoming and outgoing momenta are aligned along the same line, the S-matrix of the tree level 2+1 dimensional Thirring model factorizes: any S - matrix element is a product of $2\rightarrow 2$ elements. In particular this means nullification of all collinear $2 \rightarrow n$ amplitudes for $n > 2$.
%U http://arxiv.org/abs/hep-th/9303114v1