Spin-Dependent Electron-Proton Scattering in the [Formula presented]-Excitation Region

L. D. van Buuren, D. Szczerba, Ricardo 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. RachekM. C. Simani, E. Six, H. de Vries, Z. L. Zhou

Research output: Contribution to journalArticlepeer-review


We report on measurements of the cross section and provide first data on spin correlation parameters [Formula presented] and [Formula presented] 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 [Formula presented] at the elastic scattering peak to [Formula presented] at the [Formula presented] resonance. The data provide a stringent test of pion electroproduction models.

Original languageEnglish (US)
JournalPhysical Review Letters
Issue number1
StatePublished - 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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