On the Bound States in a Non-linear Quantum Field Theory of a Spinor Field with Higher Derivatives
arXiv:hep-th/9707144 · doi:10.1142/S0217751X9900083X
Abstract
We consider a model of quantum field theory with higher derivatives for a spinor field with quartic selfinteraction. With the help of the Bethe-Salpeter equation we study the problem of the two particle bound states in the "chain" approximation. The existence of a scalar bound state is established.
14 pages, no figures, LaTeX