Study of photon electroproduction on the nucleon at high and low energy by Virtual Compton Scattering
- Faculté des Sciences de Monastir, Monastir (Tunisia)
- Laboratoire de Physique Corpusculaire Clermont-Ferrand, IN2P3, Aubière Cedex (France)
Virtual Compton Scattering (VCS) and Deeply Virtual Compton Scattering (DVCS) on the nucleon are two processes accessed via the photon electroproduction reaction (eN → eγN). In the first part of this paper we are interested by the DVCS on the neutron. We measured the (D(e, eγ)X-H(e, e'γ)X) unpolarized cross section and we extracted, for the first time, a non-zero contribution of (neutron-DVCS + coherent- deuteron-DVCS) at Q{sup 2} = 1.75 GeV{sup 2} and x{sub B} = 36 from Jefferson Lab experiment E08-025. VCS on the proton has been studied at Mainz Microtron MAMI at the four-momentum transfer squared Q{sup 2} = 0.5 GeV{sup 2}, below the pion production threshold. In the second part of this paper we present our preliminary results of the structure functions (P{sub LL} − (P{sub TT}/ε)) and P{sub LT}, and the electric and magnetic generalized polarizabilities α{sub E}(Q{sup 2}) and β{sub M}(Q{sup 2}) extracted from this experiment.
- OSTI ID:
- 22979501
- Journal Information:
- Physics of Particles and Nuclei, Vol. 48, Issue 1; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7796
- Country of Publication:
- United States
- Language:
- English
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