Jefferson Lab
Information Resources
Jefferson Lab Home Search Contact JLab

    Spin-Dependent Electron-Proton Scattering in the Delta-Excitation Region

    We report on measurements of the cross section and provide first data on spin correlation parameters ATT' and ATL' 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 GeV2/c2 at the elastic scattering peak to Q2 = 0.11 GeV2/c2 at the Delta (1232) resonance. The data provide a stringent test of pion electroproduction models.

    Authors: L. D. van Buuren, D. Szczerba, R. Alarcon, D. J. Boersma, J. F. J. van den Brand, H. J. Bulten, R. Ent, M. Ferro-Luzzi, M. Harvey, P. Heimberg, D. W. Higinbotham, S. Klous, H. Kolster, J. Lang, B. L. Militsyn, D. Nikolenko, B. E. Norum, I. Passchier, H. R. Poolman, I. Rachek, M. C. Simani, E. Six, H. de Vries, and Z.-L. Zhou



    maintained by the Publications Manager