Speaker
Alexey Vladimirov
(Universidad Complutense de Madrid)
Description
I discuss the general structure of the power expansion in the transverse momentum dependent (TMD) factorization theorem. Different types of power corrections are important in different circumstances. Among them, kinematic power corrections (KPCs) are especially important since they restore charge conservation and frame invariance, which are violated at a fixed power order. I derive and sum a series of KPCs associated with the leading-power term of the TMD factorization theorem, and confirm the factorization properties explicitly at NLO. I also present first phenomenological results with inclusion of KPCs.
Author
Alexey Vladimirov
(Universidad Complutense de Madrid)