Phenomenology of transverse spin: past, present and future

TL;DR

This paper reviews the evolution and current understanding of transverse spin phenomena, emphasizing semi-inclusive deep inelastic scattering and hadronic production, and discusses recent advances and future research directions.

Contribution

It provides a comprehensive overview of transverse spin phenomenology, highlighting recent developments and future perspectives in the field.

Findings

Summarized key aspects of transverse spin studies over decades

Analyzed recent progress in transverse momentum dependent functions

Discussed future research directions in transverse spin phenomenology

Abstract

We summarize the most significant aspects in the study of transverse spin phenomena over the last few decades, focusing on Semi-Inclusive Deep Inelastic Scattering processes and hadronic production in $e^+e^-$ annihilations. The phenomenology of transverse momentum dependent distribution and fragmentation functions will be reviewed in an in-depth analysis of the most recent developments and of the future perspectives.