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arXiv · 0709.0450

Deeply Virtual Compton Scattering off the neutron

M. Mazouz·A. Camsonne·C. Muñoz Camacho
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Abstract

The present experiment exploits the interference between the Deeply Virtual Compton Scattering (DVCS) and the Bethe-Heitler processes to extract the imaginary part of DVCS amplitudes on the neutron and on the deuteron from the helicity-dependent D$({\vec e},e'γ)X$ cross section measured at $Q^2$=1.9 GeV$^2$ and $x_B$=0.36. We extract a linear combination of generalized parton distributions (GPDs) particularly sensitive to $E_q$, the least constrained GPD. A model dependent constraint on the contribution of the up and down quarks to the nucleon spin is deduced.

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M. Mazouz, A. Camsonne, C. Muñoz Camacho. 2007-12-12. Deeply Virtual Compton Scattering off the neutron. https://doi.org/10.1103/physrevlett.99.242501

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