Search results for " 13.85.Hd"

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Deeply virtual compton scattering off the neutron.

2007

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$({\vec e},e'\gamma)X$ 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.

QuarkPhysicsParticle physicsPhoton010308 nuclear & particles physicsScatteringHigh Energy Physics::PhenomenologyNuclear TheoryCompton scatteringFOS: Physical sciencesGeneral Physics and AstronomyVirtual particleParton[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesNuclear physicsIsospin0103 physical sciences25.30.-c 13.60.Fz 13.85.Hd 14.20.DhHigh Energy Physics::ExperimentNuclear Experiment (nucl-ex)010306 general physicsNucleonNuclear ExperimentNuclear ExperimentPhysical review letters
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