A1 Journal article (refereed)
Gluon imaging using azimuthal correlations in diffractive scattering at the Electron-Ion Collider (2021)


Mäntysaari, H., Roy, K., Salazar, F., & Schenke, B. (2021). Gluon imaging using azimuthal correlations in diffractive scattering at the Electron-Ion Collider. Physical Review D, 103(9), Article 094026. https://doi.org/10.1103/physrevd.103.094026


JYU authors or editors


Publication details

All authors or editors: Mäntysaari, Heikki; Roy, Kaushik; Salazar, Farid; Schenke, Björn

Journal or series: Physical Review D

ISSN: 2470-0010

eISSN: 2470-0029

Publication year: 2021

Publication date: 21/05/2021

Volume: 103

Issue number: 9

Article number: 094026

Publisher: American Physical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/physrevd.103.094026

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/75952

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2011.02464


Abstract

We study coherent diffractive photon and vector meson production in electron-proton and electron-nucleus collisions within the Color Glass Condensate effective field theory. We show that electron-photon and electron-vector meson azimuthal angle correlations are sensitive to nontrivial spatial correlations in the gluon distribution of the target, and perform explicit calculations using spatially dependent McLerran-Venugopalan initial color charge configurations coupled to the numerical solution of small x JIMWLK evolution equations. We compute the cross-section differentially in Q2 and |t| and find sizeable anisotropies in the electron-photon and electron-J/ψ azimuthal correlations (v1,2≈2–10%) in electron-proton collisions for the kinematics of the future Electron-Ion Collider. In electron-gold collisions these modulations are found to be significantly smaller (v1,2<0.1%). We also compute incoherent diffractive production where we find that the azimuthal correlations are sensitive to fluctuations of the gluon distribution in the target.


Keywords: particle physics


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Ministry reporting: Yes

Reporting Year: 2021

JUFO rating: 2


Last updated on 2022-20-09 at 13:57