Δ Electroproduction and Inelastic Charge Scattering from Carbon and Iron

D. T. Baran, B. F. Filippone, D. Geesaman, M. Green, R. J. Holt, H. E. Jackson, J. Jourdan, R. D. McKeown, R. G. Milner, J. Morgenstern, D. H. Potterveld, R. E. Segel, P. Seidl, R. C. Walker, and B. Zeidman
Phys. Rev. Lett. 61, 400 – Published 25 July 1988
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Abstract

Electroproduction of the Δ isobar in C and Fe has been studied for incident electrons with energies between 0.6 and 1.6 GeV. A longitudinal-transverse decomposition of the inclusive cross section has been made for qμ2=0.1 (GeV/c)2. The residual longitudinal cross sections measured do not provide the additional strength needed above the quasifree region to satisfy the Coulomb sum rule. The transverse cross sections are in good agreement with data from photoabsorption.

  • Received 31 March 1988

DOI:https://doi.org/10.1103/PhysRevLett.61.400

©1988 American Physical Society

Authors & Affiliations

D. T. Baran1,3, B. F. Filippone2, D. Geesaman1, M. Green1,*, R. J. Holt1, H. E. Jackson1, J. Jourdan2, R. D. McKeown2, R. G. Milner2, J. Morgenstern4, D. H. Potterveld2, R. E. Segel1,3, P. Seidl1,†, R. C. Walker2, and B. Zeidman1

  • 1Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
  • 2W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125
  • 3Department of Physics, Northwestern University, Evanston, Illinois 60201
  • 4Service de Physique Nucleaire-Haute Energie, Centre d'Etudes Nucléaires de Saclay, 91191 Gif-sur-Yvette, France

  • *Present address: LeCroy Corporation, 700 S. Main, Spring Valley, NY 10977-6499.
  • Present address: Nuclear Science Division, Building 70A, Lawrence Berkeley Laboratory, Berkeley, CA 94720.

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Vol. 61, Iss. 4 — 25 July 1988

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