ABSTRACT
This chapter reviews the assumptions made in describing hadron-hadron collisions. In a hard hadron-hadron collision there are no special effects that distinguish particles having finite momenta in the exact center of mass. The chapter describes what the products might look like in hadronic collisions. A research problem which is very important, and virtually unknown theoretically, is collisions at extreme energy in which the particles come out at large relative momenta to the original direction. Arturo Cisneros points out the two outgoing lumps carrying opposite hadronic quantum numbers would generate a dipole strong current which would tend to radiate softer hadrons into low x.
