A novel treatment of the proton-proton Coulomb force in elastic pd scattering and breakup reaction*

A novel approach to incorporate the proton-proton Coulomb force into the three-nucleon Faddeev calculations is presented. The main new ingredient is a 3-dimensional screened proton-proton Coulomb t-matrix obtained by a numerical solution of the 3-dimensional Lippmann-Schwinger equation. It is demonstrated numerically that the elastic proton-deuteron observables can be determined directly from the resulting on shell three-nucleon amplitude increasing the screening radius. The screening limit exists without the need of renormalization. Applying renormalization to the proton-proton half-shell t-matrix also breakup observables can be derived as is demonstrated for some exclusive breakup configurations.