Total Cross Sections of Hadron Collisions and Ligh1·Cone Algebra

The high energy behavior for ·photon (meson)-nucleon total cross sections is studied from a combined viewpoint of the light-cone dominance and eN-data. It is shown that the high energy behavior is described by the contribution from the leading light-cone singu-larities, if suitable scale-breaking masses are introduced. The scale-breaking masses are re-garded as the effective quark masses characteristic of the kind of interacting fields. The effective quark mass for electromagnetic interaction is found to be the same as M / /lp, where M and /lp are the mass and magnetic moment of a proton. Several attempts have been made to obtain new information on hadron collisions, applying the knowledg ~ or the techniques developed in lepton-hadron collisions.1>-B> Iizuka and Okamura ( = IO) investigated the effects of the leading light-cone singularities ( =LLCS) on hadronic total cross sections,2> in connectio