Angular structure of Drell-Yan reaction in the TMD factorization approach

Abstract

We study angular distributions in the Drell-Yan process using an extended transverse momentum dependent (TMD) factorization framework that includes kinematic power corrections. This approach allows the description of observables previously considered power-suppressed. The results show good agreement with experimental data and provide the first LHC-based indication of the Boer-Mulders function, highlighting the value of power corrections in TMD phenomenology.

Comments: 4 pages,contribution to the 2025 QCD session of the 59th Rencontres de Moriond