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van Buuren, L D; Szczerba, D; Alarcon, R; Boersma, D J; van den Brand, J F J; Bulten, H J; Ent, R; Ferro-Luzzi, M; Harvey, M; Heimberg, P; Higinbotham, D W; Klous, S; Kolster, H; Lang, J; Militsyn, B L; Nikolenko, D; Norum, B E; Passchier, I; Poolman, H R; Rachek, I; Simani, M C; Six, E; de Vries, H; Zhou, Z-L
Physical review letters, 07/2002, Letnik: 89, Številka: 1Journal Article
We report on measurements of the cross section and provide first data on spin correlation parameters A(TT') and A(TL') in inclusive scattering of longitudinally polarized electrons from nuclear-polarized hydrogen. Polarized electrons were injected into an electron storage ring operated at a beam energy of 720 MeV. Polarized hydrogen was produced by an atomic beam source and injected into an open-ended cylindrical cell, located in the electron storage ring. The four-momentum transfer squared ranged from Q2 = 0.2 GeV(2)/c(2) at the elastic scattering peak to Q2 = 0.11 GeV(2)/c(2) at the Delta(1232) resonance. The data provide a stringent test of pion electroproduction models.
