Conference Presentation

PUBDB-2023-07191

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Perturbative splitting in DPDs and DPS - Numerical impact of NLO corrections

Ploessl, P. J. (Corresponding author)DESY*

2023

Abstract: For short distances between the two probed partons double parton distributions (DPDs) are dominated by a perturbative $1 \to 2$ splitting which can be calculated in perturbation theory. In this talk I will briefly sketch how this splitting can be computed and then discuss the numerical impact of including the NLO contribution to this splitting. Besides modifying the overall size and shape of DPDs and DPD luminosities, one finds that the NLO contribution is crucial in reducing different kinds of scale uncertainties which are rather large at LO.

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project 430824754 - Neue Zugänge zu semi-inklusiven Streuprozessen am Electron-Ion-Collider (EIC) (430824754) (430824754)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2023

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