Speaker
Giovanni A. Chirilli
(University of Regensburg)
Description
The most known scheme to regulate the rapidity/UV divergences of the Transverse Momentum
Distribution operators due to the infinite light-like gauge links is the Collis Soper Sterman formalism
or the Soft Collinear Effective Theory formalism. An alternative choice is provided by the scheme
used in the small-x physics. The corresponding evolution equations differ already at leading order.
In view of the future Electron Ion Collider accelerator, which will probe the TMDs at values of the
Bjorken x in the region between small-x to x~1, the different formalisms need to be reconciled.
I will discuss the conformal properties of TMD operators and present the result of the conformal
rapidity evolution of TMD operators in the Sudakov region.
Author
Giovanni A. Chirilli
(University of Regensburg)
