EPJ Web Conf.
Volume 274, 2022XVth Quark Confinement and the Hadron Spectrum Conference (ConfXV)
|Number of page(s)||8|
|Section||4 - Parallel Track C|
|Published online||22 December 2022|
Subleading power corrections to heavy quarkonium production in QCD factorization approach
1 Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
2 Physics Department, University of California, Berkeley, CA 94720, USA
3 Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
4 Theory Center, Jefferson Lab, Newport News, Virginia 23606, USA
5 Department of Physics, The College of William & Mary, Williamsburg, Virginia 23187, USA
6 C.N. Yang Institute for Theoretical Physics and Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794, USA
7 SUBATECH UMR 6457 (IMT Atlantique, Université de Nantes, IN2P3/CNRS), 4 rue Alfred Kastler, 44307 Nantes, France
8 Faculty of Science and Technology, Seikei University, Musashino, Tokyo 180-8633, Japan
* e-mail: firstname.lastname@example.org
Published online: 22 December 2022
We report the current understanding of heavy quarkonium production at high transverse momentum (pT) in hadronic collisions in terms of QCD factorization. In this presentation, we highlight the role of subleading power corrections to heavy quarkonium production, which are essential to describe the pT spectrum of quarkonium at a relatively lower pT. We also introduce prescription to match QCD factorization to fixed-order NRQCD factorization calculations for quarkonium production at low pT.
© The Authors, published by EDP Sciences, 2022
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