Lepton Pair Production and Two Boson Mechanism

Abstract

Resent interest to the so called two-photon mechanism of lepton pair production in pp collision forced this investigation. Using computer algebra system the Drell-Yan-like lepton pair production is analyzed in e+e−-annihilation and then in quark-antiquark subprocess. In Standard model the two-boson mechanism is in the next order of perturbation scheme and gives negligible correction to lowest order tree diagrams. So, only very special kinematics, which is not pointed by authors of publications, can draw attention to the two-boson mechanism.