Back-to-back dijet production in DIS at next-to-eikonal accuracy and twist-3 gluon TMDs

Autor:	Altinoluk, Tolga, Beuf, Guillaume, Czajka, Alina, Marquet, Cyrille
Rok vydání:	2024
Předmět:	High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	We consider dijet production in deep inelastic scattering at small $x$, on a purely gluonic unpolarized target. Starting from earlier results obtained at next-to-eikonal accuracy in the high-energy limit, we perform the expansion in the back-to-back dijet limit, at next-to-leading power accuracy. We rewrite our results in the language of transverse-momentum-dependent (TMD) factorization, in terms of twist-2 and twist-3 TMD gluon distributions (gluon TMDs). Among the next-to-eikonal corrections, we find in particular twist-2 contributions corresponding to the $x$ dependent phase of the twist-2 gluon TMDs. We also find two types of twist-3 unpolarized gluon TMDs, as well as correlators of three gluon field strength tensors. Comment: 38 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2410.00612 Zobrazit plný text záznamu View this record from Arxiv