Eur. Phys. J. C (2004) 33: 137-148
https://doi.org/10.1140/epjc/s2003-01523-7
https://doi.org/10.1140/epjc/s2003-01523-7
theoretical physics
Affine Toda field theory from tree unitarity
Department of Physics and Meteorology and Centre for Theoretical Studies, Indian Institute of Technology, 721302, Kharagpur, India
* e-mail: pratik@cts.iitkgp.ernet.in
The elasticity property (i.e. no particle creation) is used in the tree level scattering of scalar particles in 1 + 1 dimensions to construct affine Toda field theory (ATFT) associated with the root systems of the groups a 2 (2) and c 2 (1). A general prescription is given for constructing ATFT (associated with rank two root systems) with two self-conjugate scalar fields. It is conjectured that the same method could be used to obtain the other ATFT associated with higher rank root systems.
© Springer-Verlag, 2004
