Antiparticle Contribution in the Cross Ladder Diagram for Bethe-Salpater Equation in the Light-Front

摘要

We construct the homogeneous integral equation for the vertex of the boundstate in the light front with the kernel approximated to order g^4. We willtruncate the hierarchical equations from Green functions to construct dynamicalequations for the two boson bound state exchanging interacting intermediatebosons and including pair creation process contributing to the crossed ladderdiagram.