Investigation of Pionic Contribution in the Lepton and Antilepton Production Cross Section in p-Cu and p-Pt Collision

Figure 6

(a) and (b) show the ratio in terms of for Cu and Pt nuclei. The full curve shows the results by considering the Fermi motion, the binding energy, and the pionic contribution effect. The dashed line shows the results by considering the Fermi motion and the binding energy. Experimental data are taken from [19].

(a)

(b)