The dipole picture and the non-relativistic expansion
Miguel Ángel Escobedo Espinosa, Tuomas Lappi
SciPost Phys. Proc. 8, 023 (2022) · published 11 July 2022
- doi: 10.21468/SciPostPhysProc.8.023
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.
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- 1 Universidade de Santiago de Compostela / University of Santiago de Compostela [USC]
- 2 Jyväskylän yliopisto / University of Jyväskylä
Funders for the research work leading to this publication