Round table: Nucleon tomography. What can we do better today than Rutherford 100 years ago?

Abstract

Abstract. A survey is presented on the current status of 3D nucleon tomography. Several research frontiers are addressed that dominate modern physics from theory to current and future experiments. We have now a much more detailed spatial image of the nucleon thanks to various theoretical concepts and methods to describe its charge distribution and spin decomposition which are highlighted here. The progress of lattice computations of these quantities is reported and the prospects of what we can come to expect in the near future are discussed. Multi-dimensional maps of the nucleon's partonic structure appear now within reach of forthcoming experiments.

Concurrent approaches to Generalized Parton Distribution modeling: the pion’s case

“…They constitute a unifying framework for these classical objects, and they also provide unique, new information about the structure of hadrons, including 3D imaging of their partonic content as recently reviewed in Ref. [4]. GPDs have been the object of a continuous theoretical, phenomenological and experimental activity (see the reviews [5][6][7][8][9][10][11][12][13][14] and references therein).…”

Measures of pion and kaon structure from generalised parton distributions

“…Focusing on GPDs, which can yield information about the spatial distributions of mass, momentum, spin, etc. within hadrons, much theoretical work and phenomenology has focused on the proton [7][8][9]. Less has been devoted to mesons [9,10].…”

“…within hadrons, much theoretical work and phenomenology has focused on the proton [7][8][9]. Less has been devoted to mesons [9,10].…”