Investigation of pionic contribution in the lepton and anti-lepton production cross section in p-Cu and p-Pt collision

TL;DR

This paper investigates how pionic contributions affect lepton and anti-lepton production cross sections in proton collisions with copper and platinum nuclei, emphasizing the role of pion clouds in nuclear structure functions.

Contribution

It introduces a detailed analysis of pion cloud effects on nuclear structure functions and EMC ratios in Cu and Pt using the harmonic oscillator model.

Findings

Pionic contributions significantly influence lepton production cross sections.

Pion cloud effects alter the EMC ratio in heavy nuclei.

The harmonic oscillator model effectively describes pion contributions.

Abstract

For detailed explanation of the experimental results of lepton production cross section in hadronic collisions such as nucleon-nucleon or nucleon-nuclei, it is of great importance to use quarks and sea quarks distribution function inside free and bound nucleons. In this paper the role of pion cloud inside the nucleus in the structure function of Cu and Pt nuclei and the EMC ratio of these nuclei were investigated by using harmonic oscillator model.