Proton structure in a light-front quark-diquark model: Collins asymmetry

TL;DR

This paper predicts Collins asymmetries in proton SIDIS processes using a light-front quark-diquark model based on AdS/QCD, and compares these predictions with experimental data from HERMES and COMPASS.

Contribution

It introduces a novel light-front quark-diquark model for proton structure derived from soft-wall AdS/QCD to predict spin asymmetries in SIDIS.

Findings

Model predictions agree with HERMES and COMPASS data.

Provides insights into proton spin structure.

Validates the light-front quark-diquark approach.

Abstract

We present model predictions of Collins asymmetries for proton in the SIDIS process for $\pi^+$ and $\pi^-$ channels. We use a recently proposed light-front quark-diquark model for proton with the light-front wave functions predicted in soft-wall AdS/QCD. The model predictions are compared with the HERMES and COMPASS data.