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6–12 Apr 2025
Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany
Europe/Berlin timezone

NLO calculations at small x

10 Apr 2025, 10:00
20m
HZ 7 (Goethe University Frankfurt, Campus Westend, Hörsaalzentrum)

HZ 7

Goethe University Frankfurt, Campus Westend, Hörsaalzentrum

Oral New theoretical developments Parallel session 9

Speaker

Tuomas Lappi

Description

This talk reviews recent progress in next-to-leading order calculations for dilute-dense-processes in the small-x gluon saturation regime, especially for Deep Inelastic Scattering observables. A systematical formalism for such observables is provided by a combination of light cone perturbation for the dilute probe, combined with a Color Glass Condensate picture for eikonal scattering off the dense gluonic target. In particular we focus here on the recent calculation [1,2] of the diffractive DIS structure function, which is expected to be more sensitive to gluon saturation than inclusive DIS observables.

[1] G. Beuf, T. Lappi, H. Mäntysaari, R. Paatelainen and J. Penttala, "Diffractive deep inelastic scattering at NLO in the dipole picture," JHEP 05 (2024), 024, [arXiv:2401.17251 [hep-ph]].

[2] G. Beuf, H. Hänninen, T. Lappi, Y. Mulian and H. Mäntysaari, "Diffractive deep inelastic scattering at NLO in the dipole picture: The qqg contribution," Phys. Rev. D 106 (2022) no.9, 094014, [arXiv:2206.13161 [hep-ph]].

Category Theory

Author

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