Deeply Virtual Compton Scattering experiment at  Jefferson Lab Hall B , with CLAS12, large acceptance spectrometer. Goals: Theoretical concepts as Generalized Parton Distributions (GPD), enable to probe with a dramatic accuracy the nucleon structure, and access the quark confinement in hadrons.

CLAS12-Tracker

PARTONS ANR Project

CLAS12
CLAS/DVCS
Objectives Study of deeply virtual Compton scattering (DVCS) at Jefferson Lab, at 6 GeV, as part of the general program to determine generalized parton distributions (GPD) in the nucleon.

PARTONS ANR Project

The COMPASS experiment (Common Muon and Proton Aparatus for Structure and Spectroscopy) is a particle physics experiment on the hadron and muon beam from the SPS accelerator at CERN, close to Geneva. Several physics topics are adressed: Nucleon structure in quarks and gluons, in which the DPhN is particlarly involved.

PARTONS ANR Project

Compass : COMmon Muon Proton Apparatus For Structure and Spectroscopy
Hadron Form Factors
Hadron electromagnetic form factors parametrize the internal structure of hadrons, the dynamical distribution of magnetization and charge created by the inner constituents.  They are considered fundamental quantities as they are a privileged background for interplay between theory and experiment.
La nature de ces nouvelles fonctions     Des progrès théoriques importants survenus dans les cinq dernières années permettent d'étendre considérablement la notion de distributions de partons dans un nucléon ou un méson.
Les distributions de partons généralisées (GPD)

 

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