Interactions of a $j=1$ boson in the $2(2j+1)$ component theory

Details Interactions of a $j=1$ boson in the $2(2j+1)$ component theory Interactions of a $j=1$ boson in the $2(2j+1)$ component theory

1995-05-08

arxiv.org/abs/hep-th/9505044v1

Int.J.Theor.Phys. 35 (1996) 115-128

Physics

High Energy Physics

High Energy Physics - Theory

REVTeX 3.0 file. 12pp. Substantially revised version of IFUNAM preprints FT-93-24, FT-93-35

Scientific paper

10.1007/BF02082937

The amplitudes for boson-boson and fermion-boson interactions are calculated in the second order of perturbation theory in the Lobachevsky space. An essential ingredient of the used model is the Weinberg's $2(2j+1)$ component formalism for describing a particle of spin $j$, recently developed substantially. The boson-boson amplitude is then compared with the two-fermion amplitude obtained long ago by Skachkov on the ground of the hamiltonian formulation of quantum field theory on the mass hyperboloid, $p_0^2 -{\bf p}^2=M^2$, proposed by Kadyshevsky. The parametrization of the amplitudes by means of the momentum transfer in the Lobachevsky space leads to same spin structures in the expressions of $T$ matrices for the fermion and the boson cases. However, certain differences are found. Possible physical applications are discussed.

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