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The dipole picture and the non-relativistic expansion
by Miguel Ángel Escobedo Espinosa, Tuomas Lappi
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Miguel Ángel Escobedo Espinosa |
| Submission information | |
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| Preprint Link: | scipost_202107_00107v1 (pdf) |
| Date accepted: | 2022-03-23 |
| Date submitted: | 2021-07-31 22:22 |
| Submitted by: | Escobedo Espinosa, Miguel Ángel |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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Abstract
We study exclusive quarkonium production in the dipole picture at next-to-leading order (NLO) accuracy, using the non-relativistic expansion for the quarkonium wavefunction. The quarkonium light cone wave functions needed in the dipole picture have typically been available only at tree level, either in phenomenological models or in the nonrelativistic limit. Here, we discuss the compatibility of the dipole approach and the non-relativistic expansion and compute NLO relativistic corrections to the quarkonium light-cone wave function in light-cone gauge.
Published as SciPost Phys. Proc. 8, 023 (2022)
Reports on this Submission
Report #1 by Anonymous (Referee 1) on 2022-2-19 (Invited Report)
- Cite as: Anonymous, Report on arXiv:scipost_202107_00107v1, delivered 2022-02-19, doi: 10.21468/SciPost.Report.4470
Report
The manuscript presents the exclusive quarkonium production at the next-to-leading order in the dipole picture. The study is performed by using light-cone perturbation theory, and the results are obtained by treating quarkonium as a non-relativistic system. This study is the first computation of the process of quarkonium decaying into a pair of leptons in the light-cone perturbation theory.
The text is well-written and worth publishing.