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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 | |
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| Preprint Link: | https://arxiv.org/abs/2105.08503v1 (pdf) |
| Date accepted: | May 6, 2022 |
| Date submitted: | May 19, 2021, 3:23 p.m. |
| Submitted by: | Adrian Dumitru |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Phenomenological |
Abstract
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)