A4 Article in conference proceedings
Unequal rapidity correlators in the dilute limit of JIMWLK (2019)

Lappi, T., & Ramnath, A. (2019). Unequal rapidity correlators in the dilute limit of JIMWLK. In DIS 2019 : Proceedings of the XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects (Article 068). Sissa. POS Proceedings of Science, 352. https://doi.org/10.22323/1.352.0068

JYU authors or editors

Publication details

All authors or editors: Lappi, Tuomas; Ramnath, Andrecia

Parent publication: DIS 2019 : Proceedings of the XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects

Place and date of conference: Torino, Italy, 8.-12.4.2019

Journal or series: POS Proceedings of Science

eISSN: 1824-8039

Publication year: 2019

Number in series: 352

Article number: 068

Publisher: Sissa

Publication country: Italy

Publication language: English

DOI: https://doi.org/10.22323/1.352.0068

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/67053

Web address of parallel published publication (pre-print): https://arxiv.org/abs/1908.11748

Abstract

We study unequal rapidity correlators in the stochastic Langevin picture of Jalilian-Marian– Iancu–McLerran–Weigert–Leonidov–Kovner (JIMWLK) evolution in the Color Glass Conden- sate effective field theory. By separately evolving the Wilson lines in the direct and complex conjugate amplitudes, we use the formalism to study two-particle production at large rapidity separations. We show that the evolution between the rapidities of the two produced particles can be expressed as a linear equa- tion, even in the full nonlinear limit. We also show how the Langevin formalism for two-particle correlations reduces to a BFKL picture in the dilute limit and in momentum space, providing an interpretation of BFKL evolution as a stochastic process for color charges.

Keywords: particle physics

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Ministry reporting: Yes

Reporting Year: 2019

JUFO rating: 0