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The dipole picture and the non-relativistic expansion

by Miguel Ángel Escobedo Espinosa, Tuomas Lappi

Submission summary

As Contributors: Miguel Ángel Escobedo Espinosa
Preprint link: scipost_202107_00107v1
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: DIS2021
Academic field: Physics
Specialties:
  • Nuclear Physics - Theory

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.

Current status:
Publication decision taken: accept

Editorial decision: For Journal SciPost Physics Proceedings: Publish
(status: Editorial decision fixed and (if required) accepted by authors)



Submission & Refereeing History

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Submission scipost_202107_00107v1 on 31 July 2021

Reports on this Submission

Anonymous Report 1 on 2022-2-19 (Invited Report)

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.
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