Okubo transformation on the light cone: A nonperturbative approach to effective light-front Hamiltonians

A nonperturbative method for constructing effective Hamiltonians, developed formerly by Carl ct al, for meson-baryon systems in equal-time quantization, is applied to a light-front quantized Yukawa model with scalar fermion-boson coupling. Using a nonperturbatively constructed unitary transformation, a Schrodinger equation with a nonperturbative effective light-front Hamiltonian results that can be treated by means of standard techniques. As a first application, fermion and boson parton distributions of a physical fermion are computed.