Document Type

Conference Paper

Publication Date

2024

DOI

10.22323/1.456.0054

Publication Title

Proceedings of 25th International Symposium on Spin Physics - PoS (SPIN2023)

Volume

456

Pages

054 (1-10)

Conference Name

25th International Symposium on Spin Physics (SPIN2023), 24-29 September 2023, Durham, NC

Abstract

Transverse momentum dependent (TMD) observables are typically classified in terms of their contributions coming from different regions in transverse momentum. The low transverse momentum behavior is often ascribed to intrinsic nonperturbative properties of the hadron described by TMD factorization, while the large transverse momentum region can be computed using fixed order collinear perturbation theory. Combining both pictures in a consistent way presents challenges, for practical calculations as well as the interpretation of results. We discuss a recent approach that is designed to retain a physical interpretation in terms of hadron structure while alleviating tension with techniques used at much higher energies. The approach is organized to allow for convenient nonperturbative model building in a way that incorporates both perturbative and non perturbative contributions in the parametrization of TMD densities while guaranteeing the matching in the large transverse momentum region.

Comments

This conference took place in 2023. The scholarly work was published in 2024.

Original Publication Citation

Rainaldi, T., Boglione, M., Gonzalez-Hernandez, J. O., & Rogers, T. C. (2024). TMD phenomenology with the HSO approach. Proceedings of 25th International Symposium on Spin Physics - PoS (SPIN2023) 456, 054. https://doi.org/10.22323/1.456.0054

ORCID

0000-0002-8342-6765 (Rainaldi), 0000-0002-0762-0275 (Rogers)

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