Work

Determination of unpolarized TMD distributions from the fit of Drell-Yan and SIDIS data at N4LL

Year: 2025

Type: article

Abstract: A bstract We present a fit of the transverse momentum spectrum for Drell-Yan and semi-inclusive deep inelastic scattering data, based on transverse momentum dependent (TMD) factorization at N 4 LL accuracy. Our analysis shows good agreement with the data and confirms the findings of previous studies. Based on this, we extract the unpolarized TMD parton distribution functions, the TMD fragmentation functions, and the Collins-Soper kernel. Compared to earlier works, our study incorporates several improvements, including large- x resummation, flavor and fragmentation function dependence, among others. Additionally, we supplement our extraction with an analysis of the transverse momentum moments of the extracted distributions.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep11(2025)134

Authors: Valentin Moos, Ignazio Scimemi, Alexey Vladimirov, Pia Zurita

Institutions: National Yang Ming Chiao Tung University, Universidad Complutense de Madrid

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: National Science and Technology Council, Comunidad de Madrid, European Commission, Agencia Estatal de Investigación