Speaker
Michel GUIDAL
(CNRS)
Description
Generalized Parton Distributions (GPDs) allow to describe the
structure of the nucleon in a very rich and unprecedented way: they
contain the correlations between the (transverse) position and
(longitudinal) momentum distributions of the partons in the nucleon,
they allow to derive the orbital momentum contribution of partons to
the nucleon's spin, they provide an access to the nucleon's ($q\bar{q}$)
content, etc...
GPDs can be accessed experimentally through the exclusive leptoproduction
of a photon (``Deep Virtual Compton Scattering", DVCS).
In this presentation, we will present the latest results of our fitter code
which aims at extracting, in a largely model-independent way, the GPD
information, namely Compton form Factors, from experimental data. We will show
the results of this code applied to the latest JLab and HERMES DVCS data,
which begin to provide some new insights on nucleon structure.
Author
Michel GUIDAL
(CNRS)
