Seminarium Fizyki Wielkich Energii
sala B2.38, ul. Pasteura 5
Paweł Sznajder (NCBJ)
Phenomenology of Generalized Parton Distributions - from experimental data to 3D structure of the nucleon
The formalism of Generalized Parton Distributions (GPDs) provides a set of novel and powerful tools to investigate the nucleon structure. In particular, it allows to describe the nucleon as an extended object and it gives access to the QCD energy-momentum tensor. The latter allows to evaluate the contribution of orbital angular momentum to the nucleon spin through the so-called Ji’s sum rule and it helps to understand the distribution of "mechanical" forces acting on quarks in the nucleon.After a brief introduction to the formalism of GPDs the current status of experimental campaign to constrain those distributions will be summarised. Future projects with their physics cases for GPDs will be addressed as well. Finally, recent progress in the phenomenology of GPDs will be discussed.