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The dipole picture and the non-relativistic expansion

by Miguel Ángel Escobedo Espinosa, Tuomas Lappi

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Submission summary

Authors (as registered SciPost users): Miguel Ángel Escobedo Espinosa
Submission information
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
Academic field: Physics
  • Nuclear Physics - Theory


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

Anonymous Report 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


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.
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