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Virtual Compton scattering on the proton has been investigated at three yet unexplored values of the four-momentum transfer $Q^2$: 0.10, 0.20 and 0.45 GeV$^2$, at the Mainz Microtron. Fits performed using either the low-energy theorem or dispersion r...
Virtual Compton scattering on the proton has been investigated at three yet unexplored values of the four-momentum transfer $Q^2$: 0.10, 0.20 and 0.45 GeV$^2$, at the Mainz Microtron. Fits performed using either the low-energy theorem or dispersion r...
The spin-structure functions g_1 and g_2, and the spin-dependent partial cross-section \sigma_{TT} have been extracted from the polarized cross-sections differences, \Delta \sigma_{||}(\nu,Q^2) and \Delta \sigma_{\perp}(\nu,Q^2) measured for the 3He(...
The spin-structure functions g_1 and g_2, and the spin-dependent partial cross-section \sigma_{TT} have been extracted from the polarized cross-sections differences, \Delta \sigma_{||}(\nu,Q^2) and \Delta \sigma_{\perp}(\nu,Q^2) measured for the 3He(...
The techniques for the optical calibration of Jefferson Lab's large-acceptance magnetic hadron spectrometer, BigBite, have been examined. The most consistent and stable results were obtained using a method based on singular value decomposition. In sp...
Intensive theoretical and experimental efforts over the past decade have aimed at explaining the discrepancy between data for the proton electric to magnetic form factor ratio, G<sub>E</sub>/G<sub>M</sub>, obtained separately from cross section and p...
We report the measurement of beam-target double spin asymmetries (ALT) in the inclusive production of identified hadrons, e⃗ + 3He↑→h+X, using a longitudinally polarized 5.9-GeV electron beam and a transversely polarized He3 target. Hadrons (π±,K±, a...
We report the first measurement of target single spin asymmetries of charged kaons produced in semi-inclusive deep inelastic scattering of electrons off a transversely polarized He3 target. Both the Collins and Sivers moments, which are related to th...