Year: 2024
Type: article
Abstract: A bstract We present a comprehensive study of the angular structure functions for Drell-Yan leptons in Z/γ -boson production within the framework of the transverse momentum dependent (TMD) factorization theorem, including kinematic power corrections (KPCs). We find good agreement with the data in the applicability region of the TMD factorization theorem. The inclusion of KPCs allows us to describe all angular coefficients in a frame-independent manner using only the leading-twist TMD distributions: the unpolarized and the Boer-Mulders functions. The value of the Boer-Mulders function is determined using the ATLAS measurement of the A 2 angular coefficient. The analysis is performed at N 4 LL perturbative order. Additionally, we discuss the technical implementation and impact of KPCs on the phenomenology of TMD distributions.
Source: Journal of High Energy Physics
Authors: Sara Piloñeta, Alexey Vladimirov
Institution: Universidad Complutense de Madrid
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4405218670