Light-front versus Bethe-Salpeter forms of two nucleon amplitudes

Abstract

We discuss the relation between the two nucleon Bethe-Salpeter amplitude and the light front wave functions. Both approaches provide a covariant description for the deuteron bound state and the two nucleon scattering state. A comparison is done for the spin-orbit functions as well explicit integrals are given on the basis of the Nakanishi integral representation method.

Comments: 13 pages, Few Body Systems format needs fbsart11.sty, fbsedit2.sty