Reconstructing GTMDs [NT/RBRC]
by
CFNS Library
https://bnl.zoomgov.com/j/1614715193?pwd=WkwxODVWdzZzb29zQnZRVGp3VTBDQT09
Generalised transverse-momentum distributions (GTMDs) provide the most complete leading-twist description of the partonic structure of hadrons, reducing to generalised parton distributions (GPDs) and transverse-momentum distributions (TMDs) in the appropriate kinematic limits. Since a direct extraction of GTMDs from experimental data is currently out of reach, it is important to establish how they can be faithfully reconstructed from these better-known limits. In this seminar, starting from the operator definition of GTMDs, I will present the computation of the one-loop matching functions which relate GTMDs to GPDs, also discussing their peculiar evolution pattern. I will then discuss how incorporating information from TMDs can complement this GPD-based picture and lead to an accurate reconstruction of GTMDs.
Yacine Mehtar-Tani