Exploring the transverse spin structure of the nucleon
Umberto D'Alesio (University, INFN, Cagliari, Italy)
TL;DR
This paper reviews current knowledge of the nucleon's transverse spin structure, focusing on parton distributions, asymmetries, and recent experimental extractions of key functions like Sivers, Collins, and transversity.
Contribution
It provides a comprehensive overview of the latest experimental results and theoretical understanding of transverse spin phenomena in nucleons.
Findings
Recent extractions of Sivers, Collins, and transversity functions
Insights into parton transverse motion and spin asymmetries
Enhanced understanding of transverse spin structure
Abstract
We discuss our present understanding of the transverse spin structure of the nucleon and of related properties originating from parton transverse motion. Starting from the transversity distribution and the ways to access it, we then address the role played by spin and transverse momentum dependent (TMD) distributions in azimuthal and transverse single spin asymmetries. The latest extractions of the Sivers, Collins and transversity functions are also presented.
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