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Zeitschrift für Physik A Hadrons and Nuclei

, Volume 353, Issue 4, pp 415–421 | Cite as

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

  • 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
  • M. Kuss
  • A. Liesenfeld
  • K. Merle
  • R. Neuhausen
  • E. A. J. M. Offermann
  • Th. Pospischil
  • M. Potokar
  • A. Rokavec
  • A. W. Richter
  • G. Rosner
  • P. Sauer
  • S. Schardt
  • H. Schmieden
  • S. Sirca
  • L. Tiator
  • B. Vodenik
  • A. Wagner
  • Th. Walcher
  • S. Wolf
Article

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.

PACS

13.60.Le 

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • K. I. Blomqvist
    • 1
  • W. U. Boeglin
    • 1
  • R. Böhm
    • 1
  • M. Distler
    • 1
  • D. Drechsel
    • 1
  • R. Edelhoff
    • 1
  • J. Friedrich
    • 1
  • R. Geiges
    • 1
  • O. Hanstein
    • 1
  • M. Kahrau
    • 1
  • M. Korn
    • 1
  • H. Kramer
    • 1
  • K. W. Krygier
    • 1
  • V. Kunde
    • 1
  • M. Kuss
    • 2
  • A. Liesenfeld
    • 1
  • K. Merle
    • 1
  • R. Neuhausen
    • 1
  • E. A. J. M. Offermann
    • 1
  • Th. Pospischil
    • 1
  • M. Potokar
    • 3
  • A. Rokavec
    • 3
  • A. W. Richter
    • 1
  • G. Rosner
    • 1
  • P. Sauer
    • 1
  • S. Schardt
    • 1
  • H. Schmieden
    • 1
  • S. Sirca
    • 3
  • L. Tiator
    • 1
  • B. Vodenik
    • 3
  • A. Wagner
    • 1
  • Th. Walcher
    • 1
  • S. Wolf
    • 1
  1. 1.Institut für KernphysikUniversität MainzMainzGermany
  2. 2.TH DarmstadtInstitut für KernphysikDarmstadtGermany
  3. 3.Institut “Jožef Stefan”University of LjubljanaSlovenia

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