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arXiv · 2408.01243

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

Valery E. Lyubovitskij·Alexey S. Zhevlakov·Iurii A. Anikin
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Abstract

We present detailed analysis of the $T$-even lepton angular distribution in the Drell-Yan process including $\gamma/Z^0$ gauge boson exchange and using perturbative QCD based on the collinear factorization scheme at leading order in the $\alpha_s$ 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 $Q_T^2/Q^2$ 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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Valery E. Lyubovitskij, Alexey S. Zhevlakov, Iurii A. Anikin. 2024-08-02. Transverse momentum dependence of the $T$-even hadronic structure functions in the Drell-Yan process. https://arxiv.org/abs/2408.01243

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