Kinematic power corrections in TMD factorization

4 Sept 2025, 09:20
15m
Centro Carlos Santamaría

Centro Carlos Santamaría

Plaza Elhuyar, 2 20018 San Sebastián Spain

Speaker

Sara Piloñeta Álvarez

Description

In this talk, I present a study of Drell-Yan (DY) and semi-inclusive deep inelastic scattering (SIDIS) structure functions within the framework of the transverse momentum dependent (TMD) factorization theorem, including kinematic power corrections (KPCs). This formalism enables us to describe parts of the cross-section that were previously inaccessible to theory in a Lorentz-invariant manner using only twist-two TMD distributions. Applications include Drell-Yan (DY) angular distributions, the Lam-Tung relation, and the subleading structure functions $F_{UU,T}$ and $F_{UU,L}$. I also discuss the potential impact of these corrections on current and future SIDIS measurements.

Authors

Alexey Vladimirov (Universidad Complutense de Madrid) Sara Piloñeta Álvarez

Presentation materials