Fluctuation Effects on R_pA at High Energy

TL;DR

This paper explores how gluon number fluctuations cause a new physical phenomenon called total gluon shadowing, affecting the nuclear modification factor R_pA at high energies.

Contribution

It introduces the concept of total gluon shadowing induced by gluon fluctuations in the fixed coupling regime, a novel insight into high-energy nuclear interactions.

Findings

Identification of total gluon shadowing as a new phenomenon

Gluon fluctuations significantly impact R_pA at high energies

Provides theoretical framework for gluon shadowing effects

Abstract

We discuss a new physical phenomenon for R_pA in the fixed coupling case, the total gluon shadowing, which arises due to the effect of gluon number fluctuations.