Speaker
Description
Feyman's parton model played an important role for the understanding of the Bjorken scaling in the first DIS experiments and paved the way towards QCD. Various versions of parton model frameworks have been used in literature to study nucleon structure, target mass corrections and other partonic properties. The properties of the quark correlator are determined by the equations of motion of the free partons. This has recently been explored by two different groups leading to different results regarding the number of independent structures in the description of transverse momentum dependent parton distribution functions (TMDs). In this work, we systematically investigate the foundations of the parton model description of TMDs, and explain the discrepancies between the different results in literature.
