Flavor-dependent EMC effect from a nucleon swelling model

TL;DR

This paper investigates the flavor-dependent EMC effect using a nucleon swelling model within nuclear PDFs, analyzing various experimental processes to understand how nucleon modifications vary with quark flavor.

Contribution

It introduces a nucleon swelling model to describe flavor-dependent nuclear modifications in PDFs, contrasting with dynamical rescaling approaches.

Findings

Flavor dependence observed in parity-violating DIS data

Predicted effects for W-boson production in p-A collisions

Expected signals in spectator-tagged DIS with CLAS12

Abstract

We present our results for a flavor-dependent EMC effect based on the nIMParton nuclear PDFs, in which the $x$-dependence is described with a nucleon swelling model. The nuclear correction from nucleon swelling is considered through a modification of the initial valence quark distributions instead of a dynamical rescaling. To probe the flavor-dependence of the model, the experimental observables are calculated applying nIMParton nuclear modifications for various experiments: parity-violating deep inelastic scattering on nuclear target, pion-induced Drell-Yan, and W-boson production in proton-nucleus collisions. In addition, we present the expected effect for the spectator-tagged deep inelastic scattering process, which will be performed by the CLAS12 collaboration with the ALERT detector.