Investigating the Transverse Momentum Dependent Gluon Sivers Function in Quarkonium Production at pp Colliders

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作者
U. D’Alesio
F. Murgia
C. Pisano
机构
[1] Università di Cagliari,Dipartimento di Fisica
[2] Cittadella Universitaria,Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari
[3] Cittadella Universitaria,undefined
来源
Few-Body Systems | 2021年 / 62卷
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摘要
In this contribution, we will present a short overview of the transverse momentum dependent (TMD) approach as a tool for studying the 3-dimensional structure of hadrons in high-energy (un)polarized hadron collisions. We will then summarize the present status of a running research programme that aims at constraining the poorly known transverse momentum dependent gluon Sivers function, through the study of single spin asymmetries in quarkonium (mainly J/ψ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathrm{J}/\mathrm{\psi }$$\end{document}), pion, and D-meson production in polarized proton-proton collisions at RHIC. Finally, we will shortly discuss perspectives for this field of research, emphasizing in particular its role in the physics programme of LHC in the fixed-target setup and NICA-SPD at JINR.
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