Sivers and $\cos 2\phi$ Asymmetries in Semi-inclusive Deep Inelastic Scattering in Light-front Holographic Model

TL;DR

This paper models spin asymmetries in semi-inclusive deep inelastic scattering using a light-front quark-diquark approach, incorporating final state interactions to generate T-odd TMDs, and compares results with experimental data.

Contribution

It introduces a modified light-front wave function with phase factors to account for final state interactions, enabling calculation of Sivers and Boer-Mulders asymmetries.

Findings

Sivers and Boer-Mulders asymmetries are successfully modeled.

Results show good agreement with HERMES and COMPASS data.

The approach provides insights into spin-momentum correlations in the proton.

Abstract

The spin asymmetries in SIDIS associated with $T$-odd TMDs are presented in a light-front quark-diquark model of a proton. To incorporate the effects of the final state interaction, the light front wave functions are modified to have a phase factor which is essential to have Sivers or Boer-Mulders functions. The Sivers and Boer-Mulder asymmetries are compared with HERMES and COMPASS data.