33rd International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2026)

Next-to-Leading Order corrections to the Next-to-Eikonal DIS structure functions

7 May 2026, 10:20

20m

Sala SATURNO A, First Floor (Hotel Carlton)

Talk WG2 Small-x, Diffraction and Vector Mesons WG2 Small-x, diffraction and vector mesons

Speaker

Jules Favrel (National Centre for Nuclear Research (NCBJ), Warsaw, PL)

Description

We present next-to-leading order (NLO) corrections to next-to-eikonal (NEik) quark background contributions to DIS structure functions. Among NEik corrections, $t$-channel quark exchanges provide the lowest order contributions in $\alpha_s$, and can be represented as insertions of the quark background field of the target. At NLO, we compute NEik
corrections induced by both quark and gluon background fields, and suppressed by an explicit factor of $\alpha_s$. We show that the NLO corrections to the NEik longitudinal structure function are finite, while those to the NEik transverse structure function exhibit rapidity and UV divergences. These divergences are analyzed, and the finite contributions are extracted.

Presentation materials

JFAVREL_DIS2026.pdf