Speaker
Ignazio Scimemi
Description
The understanding of cross sections differential in transverse momenta are known to be factorizable with TMD in the low energy spectrum. In order achieve a complete description it is necessary to explore the power expansion that allows this factorization beyond the leading order. We have have recently considered a systematic method to perform the power expansion and the complete basis of next-to-leading power operators is obtained, together with hard factors and evolution beyond leading order. I will talk about this result. The details of evolution are then discussed by A. Vladimirov in a related talk.
