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Precise pion electroproduction in thep(e, e′ π+)n reaction at W=1125 MeV

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The reactione+p →> e+π ++n at c.m. energyW=1125MeV and momentum transfer Q2=0.117GeV2/c2 has been measured. The transverse and longitudinal structure functions have been separated by varying the polarization of the virtual photon (Rosenbluth plot) with a 3 to 4% error. In addition the longitudinal-transverse interference term has been determined measuring the right-left asymmetry with an accuracy of 3%. The experimental data are compared to model calculations, and the sensitivity of the results to the axial and pion formfactors is discussed.

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Authors and Affiliations

  1. Institut für Kernphysik, Universität Mainz, D-55099, Mainz, Germany

    K. I. Blomqvist, W. U. Boeglin, R. Böhm, M. Distler, D. Drechsel, R. Edelhoff, J. Friedrich, R. Geiges, O. Hanstein, M. Kahrau, M. Korn, H. Kramer, K. W. Krygier, V. Kunde, A. Liesenfeld, K. Merle, R. Neuhausen, E. A. J. M. Offermann, Th. Pospischil, A. W. Richter, G. Rosner, P. Sauer, S. Schardt, H. Schmieden, L. Tiator, A. Wagner, Th. Walcher & S. Wolf

  2. TH Darmstadt, Institut für Kernphysik, D-64289, Darmstadt, Germany

    M. Kuss

  3. Institut “Jožef Stefan”, University of Ljubljana, Slovenia

    M. Potokar, A. Rokavec, S. Sirca & B. Vodenik

Authors
  1. K. I. Blomqvist
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  2. W. U. Boeglin
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  9. O. Hanstein
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  10. M. Kahrau
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  11. M. Korn
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  13. K. W. Krygier
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  14. V. Kunde
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  15. M. Kuss
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  16. A. Liesenfeld
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  17. K. Merle
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  18. R. Neuhausen
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  19. E. A. J. M. Offermann
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  20. Th. Pospischil
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  21. M. Potokar
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  22. A. Rokavec
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  23. A. W. Richter
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  24. G. Rosner
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  25. P. Sauer
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  27. H. Schmieden
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  28. S. Sirca
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  29. L. Tiator
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  30. B. Vodenik
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  31. A. Wagner
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  32. Th. Walcher
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  33. S. Wolf
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Additional information

Communicated by B. Povh

Work supported by the Deutsche Forschungsgemeinschaft, SFB 201

This paper comprises parts of the Doctorate thesis of A.W. Richter

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Blomqvist, K.I., Boeglin, W.U., Böhm, R. et al. Precise pion electroproduction in thep(e, e′ π+)n reaction at W=1125 MeV. Z. Physik A - Hadrons and Nuclei 353, 415–421 (1996). https://doi.org/10.1007/BF01285153

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  • DOI: https://doi.org/10.1007/BF01285153

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