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QCD factorization for hadronic quarkonium production at high $p_T$
by Kyle Lee, Jian-Wei Qiu, George Sterman, Kazuhiro Watanabe
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Kazuhiro Watanabe |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202107_00104v1 (pdf) |
| Date accepted: | 2022-03-09 |
| Date submitted: | 2021-07-31 19:27 |
| Submitted by: | Watanabe, Kazuhiro |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Phenomenological |
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.
Published as SciPost Phys. Proc. 8, 143 (2022)
Reports on this Submission
Report #1 by Anonymous (Referee 1) on 2022-2-27 (Invited Report)
- Cite as: Anonymous, Report on arXiv:scipost_202107_00104v1, delivered 2022-02-27, doi: 10.21468/SciPost.Report.4541
Report
QCD factorization using leading power (LP) and next-to-leading power (NLP) approach for hadronic J/ψ production at the LHC is carried our. The production at high transverse momentum (pT ) in hadronic collisions is explored in this QCD factorization approach. It has been demonstrated that the LP contributions dominate the high pT region, while the NLP contributions are sizable at lower pT and necessary for describing the LHC data. The paper is very well written and I recommend this work for publication.