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Impact parameter dependence of color charge correlations in the proton

by Adrian Dumitru, Heikki Mäntysaari, Risto Paatelainen

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Submission summary

Authors (as registered SciPost users): Adrian Dumitru · Heikki Mäntysaari
Submission information
Preprint Link:  (pdf)
Date accepted: 2022-05-06
Date submitted: 2021-05-19 15:23
Submitted by: Dumitru, Adrian
Submitted to: SciPost Physics Proceedings
Proceedings issue: 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021)
Ontological classification
Academic field: Physics
  • High-Energy Physics - Phenomenology
Approaches: Theoretical, Phenomenological


The impact parameter dependence of color charge correlators in the proton is obtained from the light front formalism in light cone gauge. We include NLO corrections due to the $|qqqg\rangle$ Fock state via light-cone perturbation theory. Near the center of the proton, the $b$-dependence of the correlations is very different from a "transverse profile function". The resulting $t$-dependence of exclusive $J/\Psi$ photoproduction transitions from exponential to power law at $|t| \approx 1$ GeV$^2$. This prediction could be tested at upcoming DIS facilities or in nucleus-proton ultraperipheral collisions (UPCs).

Published as SciPost Phys. Proc. 8, 058 (2022)

Reports on this Submission

Anonymous Report 1 on 2022-3-4 (Invited Report)


Well written report.
Recommend for acceptance.

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