Physics – Mathematical Physics
Scientific paper
2008-08-08
J.Phys.A41:395306,2008
Physics
Mathematical Physics
10 pages, to appear in J. Phys. A : Math. Theor
Scientific paper
10.1088/1751-8113/41/39/395306
In this paper we develop an algebraic technique for building relativistic models in the framework of direct-interaction theories. The interacting mass operator M in the Bakamjian-Thomas construction is related to a quadratic Casimir operator C of a non-compact group G. As a consequence, the S matrix can be gained from an intertwining relation between Weyl-equivalent representations of G. The method is illustrated by explicit application to a model with SO(3,1) dynamical symmetry.
Kerimov G. A.
Ventura Alberto
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