Research Article
Investigation of Pionic Contribution in the Lepton and Antilepton Production Cross Section in p-Cu and p-Pt Collision
Figure 1
Drell-Yan process, a quark with fraction of momentum in the hadron and an antiquark with fraction of momentum in the hadron collide and annihilate to create a photon. This virtual photon with mass decays into a lepton pair [18].