Transverse momentum dependence of the T-even hadronic structure functions in the Drell-Yan process

2024/08/02 by Valery E. Lyubovitskij, Lyubovitskij, Valery E., Zhevlakov, Alexey S. +2 · 1 citation
Mathematics · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Stochastic processes and statistical mechanics

paper · pdf · doi:10.48550/arxiv.2408.01243

openalex publication_date 2024/08/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present detailed analysis of the T-even lepton angular distribution in the Drell-Yan process including γ/Z⁰ gauge boson exchange and using perturbative QCD based on the collinear factorization scheme at leading order in the α_s expansion. We focus on the study of the transverse momentum Q_T dependence of the corresponding hadronic structure functions and angular coefficients up to next-next-to-leading order in the Q_T²/Q² expansion. We analyze Q_T dependence numerically and compare T-even angular coefficients integrated over rapidity with available data of the ATLAS Collaboration at LHC. Additionally, we present our results for the forward-backward asymmetry and compare it with data.

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