Deeply Virtual Compton Scattering on the neutron at JLab Hall A

Abstract : Recently a new theoretical framework, the Generalized Parton Distributions (GPDs), has been proposed. It unifies form factors and parton distributions within a general description of the non-perturbative structure of the nucleon. GPDs are 4 universal functions H, E, $\tilde{H}$, and $\tilde{E}$ connected to quark correlation amplitudes. Virtual Compton scattering gammaN -> gammaN in the Bjorken limit (DVCS) is the simplest exclusive process which allows access to GPDs. In the 6~GeV energy range, the DVCS process can be investigated with polarized electrons scattering off the proton or the neutron. Jefferson Laboratory E00-110 and E03-106 experiments recently completed data taking in Hall A investigating the DVCS process on the nucleon. The experimental apparatus and methods will be presented and preliminary results will be discussed on the basis of the present analysis status.
Document type :
Conference papers

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Submitted on : Tuesday, December 19, 2006 - 2:37:57 PM
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Citation

M. Mazouz. Deeply Virtual Compton Scattering on the neutron at JLab Hall A. 5th International Conference on Perspectives in Hadronic Physics, May 2006, Trieste, Italy. pp.41-48, ⟨10.1016/j.nuclphysa.2006.10.048⟩. ⟨in2p3-00120353⟩

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