Scattering factors computed from relativistic Dirac–Slater wave functions

Relativistic NN scattering without partial wave decomposition

We consider the covariant Spectator equation with a One Boson Exchange (OBE) kernel, and apply it to the NN system. Relativistic effects such as retardation and negative-energy state components are included in that equation. We develop a method, based on the Padé method, to solve the Spectator equation without partial wave decomposition. The convergence of the partial wave decomposition series ...

Relativistic NN scattering equations without partial-wave decomposition

Modern experimental facilities such as TJNAF and Julich are probing the baryonic structure and interactions at intermediate energies (∼ GeV), through electromagnetic and strong reactions involving high momentum transfer [1]. To describe the NN interaction in the intermediate energy range (∼ 300 MeV-1 GeV), particle production mechanisms have to be included. Relativistic effects became also impo...

Relativistic scattering from moving fractally corrugated surfaces.

The solution to the problem of optical or electromagnetic-wave scattering from perfectly conducting rough surfaces modeled by a multiscale fractal function is generalized to the case of relative uniform translating motion with respect to the observer. The presence of motion can be treated by the relativistic frame hopping method by means of plane-wave simplification techniques, since the soluti...

Electromagnetic scattering from relativistic bound states.

The quasipotential formalism for elastic scattering from relativistic bound states is formulated based on the instant constraint in the Breit frame. The quasipotential electromagnetic current is derived from Mandelstam's vepoint kernel and obeys a two-body Ward identity. Breit-frame wave functions are obtained directly by solving integral equations with nonzero total threemomentum, thus accompl...

Relativistic approach for e+/- scattering from argon.