Nov 25 – 29, 2019
University of Pavia
Europe/Rome timezone

Conformal invariance of TMD rapidity evolution

Nov 28, 2019, 10:30 AM
Aula Foscolo (University of Pavia)

Aula Foscolo

University of Pavia

Via Strada Nuova 65, Pavia


Giovanni Antonio Chirilli (University of Regensburg)


Abstract: 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 $\sim$ 1, the different formalisms need to be reconciled. Conformal invariance may help us find a solution in this direction.
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.

Primary author

Giovanni Antonio Chirilli (University of Regensburg)

Presentation materials