One-loop renormalization of quark TMD in the light-cone gauge: Collins-Soper-Sterman evolution

4 Sept 2025, 09:40
15m
Centro Carlos Santamaría

Centro Carlos Santamaría

Plaza Elhuyar, 2 20018 San Sebastián Spain

Speaker

Jamal Jalilian-Marian

Description

We calculate the one-loop corrections to the quark TMD in the light-cone gauge using the background field formalism, with the Mandelstam-Leibbrandt (ML) prescription for the extra singularity present in the light-cone gauge propagator. We use the pure rapidity regulator for rapidity divergences. The Collins-Soper-Sterman (CSS) evolution equations are obtained from the one loop renormalization of the quark TMD.

Authors

Jamal Jalilian-Marian Tolga Altinoluk Guillaume Beuf

Presentation materials