QCD factorization for hadronic quarkonium production at high $p_T$

Lee, Kyle; Qiu, Jian-Wei; Sterman, George; Watanabe, Kazuhiro

doi:10.21468/SciPostPhysProc.8.143

SciPost Physics Proceedings

QCD factorization for hadronic quarkonium production at high $p_T$

Kyle Lee, Jian-Wei Qiu, George Sterman, Kazuhiro Watanabe

SciPost Phys. Proc. 8, 143 (2022) · published 14 July 2022

doi: 10.21468/SciPostPhysProc.8.143
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28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects

Abstract

Heavy quarkonium production at high transverse momentum ($p_T$) in hadronic collisions is explored in the QCD factorization approach. We find that the leading power in the $1/p_T$ expansion is responsible for high $p_T$ regime, while the next-to-leading power contribution is necessary for the low $p_T$ region. We present the first numerical analysis of the scale evolution of coupled twist-2 and twist-4 fragmentation functions (FFs) for heavy quarkonium production and demonstrate that the QCD factorization approach is capable of describing the $p_T$ spectrum of hadronic $J/\psi$ production at the LHC.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.8.143
TI  - QCD factorization for hadronic quarkonium production at high $p_T$
PY  - 2022/07/14
UR  - https://www.scipost.org/SciPostPhysProc.8.143
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 8
SP  - 143
A1  - Lee, Kyle
AU  - Qiu, Jian-Wei
AU  - Sterman, George
AU  - Watanabe, Kazuhiro
AB  - Heavy quarkonium production at high transverse momentum ($p_T$) in hadronic collisions is explored in the QCD factorization approach. We find that the leading power in the $1/p_T$ expansion is responsible for high $p_T$ regime, while the next-to-leading power contribution is necessary for the low $p_T$ region. We present the first numerical analysis of the scale evolution of coupled twist-2 and twist-4 fragmentation functions (FFs) for heavy quarkonium production and demonstrate that the QCD factorization approach is capable of describing the $p_T$ spectrum of hadronic $J/\psi$ production at the LHC.
ER  -

@Article{10.21468/SciPostPhysProc.8.143,
	title={{QCD factorization for hadronic quarkonium production at high $p_T$}},
	author={Kyle Lee and  Jian-Wei Qiu and  George Sterman and  Kazuhiro Watanabe},
	journal={SciPost Phys. Proc.},
	pages={143},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.8.143},
	url={https://scipost.org/10.21468/SciPostPhysProc.8.143},
}

Cited by 4

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¹ ² Kyle Lee,
³ ⁴ Jian-Wei Qiu,
⁵ George Sterman,
⁴ ⁶ Kazuhiro Watanabe

Funders for the research work leading to this publication