%0 Journal Article
%A Vladimirov, Alexey A.
%A Moos, Valentin
%A Scimemi, Ignazio
%T Transverse momentum dependent operator expansion at next-to-leading power
%D 2022
%@ 1029-8479
%U https://hdl.handle.net/20.500.14352/71287
%X We develop a method of transverse momentum dependent (TMD) operator expansion that yields the TMD factorization theorem on the operator level. The TMD operators are systematically ordered with respect to TMD-twist, which allows a certain separation of kinematic and genuine power corrections. The process dependence enters via the boundary conditions for the background fields. As a proof of principle, we derive the effective operator for hadronic tensor in TMD factorization up to the next-to-leading power (similar to q(T)/Q) at the next-to-leading order for any process with two detected states.
%~