Sub-eikonal spin corrections and g1 structure function at low-x

Apr 10, 2019, 5:15 PM
Cavallerizza Reale - Aula Magna

Cavallerizza Reale - Aula Magna

Via Verdi, 9 Turin
Parallel Session Talk WG2: Low-x and Diffraction Joint WG2+WG7: Small-x and Diff + Future of DIS


Giovanni Antonio Chirilli (University of Regensburg)


Most of the progress in high-energy Quantum Chromodynamics has been obtained within the eikonal approximation and infinite Wilson-line operators. Evolution equations of Wilson lines with respect to the rapidity parameter encode the dynamics of the hadronic processes at high energy. However, even at high energy many interesting aspects of hadron dynamics are not accessible within the eikonal approximation, the spin physics being an obvious example. The higher precision reached by the experiments and the possibility to probe spin dynamics at future Electron Ion Colliders make the study of deviations from eikonal approximation especially timely.

I will present the high-energy sub-eikonal corrections and the low-$x$
$g_1$ structure function through the high-energy Operator Product Expansion.

Primary author

Giovanni Antonio Chirilli (University of Regensburg)

Presentation materials