A4 Article in conference proceedings
Finite Nc corrections in the Balitsky-Kovchegov equation at next-to-leading order (2021)


Lappi, T., Mäntysaari, H., & Ramnath, A. (2021). Finite Nc corrections in the Balitsky-Kovchegov equation at next-to-leading order. In HardProbes2020 : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (Article 102). Sissa Medialab. POS Proceedings of Science, 387. https://doi.org/10.22323/1.387.0102


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Publication details

All authors or editors: Lappi, T.; Mäntysaari, H.; Ramnath, A.

Parent publication: HardProbes2020 : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

Conference:

  • International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

Place and date of conference: Austin, Texas, 1.-6.6.2020

Journal or series: POS Proceedings of Science

eISSN: 1824-8039

Publication year: 2021

Number in series: 387

Article number: 102

Publisher: Sissa Medialab

Publication country: Italy

Publication language: English

DOI: https://doi.org/10.22323/1.387.0102

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/78534


Abstract

We study the finite-Nc corrections to the next-to-leading order (NLO) Balitsky--Kovchegov (BK) equation. This contains correlators of six Wilson lines, which we express in terms of the two-point function using the Gaussian approximation. Numerically, the effects of these finite-Nc corrections on the NLO BK equation are found to be smaller than the expected 1/Nc^2 ∼ 10 percent. Corrections may be large for individual correlators, but have less of an influence on the shape of the amplitude as a function of the dipole size. There is an even smaller effect on the evolution speed as a function of rapidity.


Keywords: particle physics; quantum chromodynamics


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Ministry reporting: Yes

Reporting Year: 2021

JUFO rating: 0


Last updated on 2022-20-09 at 14:43