Parity-violating electron scattering at MAMI

Strangeness in the nucleon
  • S. BaunackEmail author
  • The A4 Collaboration


A measurement of the parity-violating asymmetry in elastic scattering of polarized electrons on protons is currently running within the A4 Collaboration at the MAMI facility in Mainz. The aim is to reveal the contribution of strange quarks to the form factors of the nucleon at a Q 2 = 0.23 GeV2. The expected asymmetry without strangeness is around 5.4 x 10-6. After 600 hours of asymmetry data taking, an accuracy of 1 x 10-6 has been achieved.


Form Factor Elastic Scattering Strange Quark Asymmetry Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    B. Borasoy, U.-G. Meissner, Ann. Phys. 254, 192 (1997).CrossRefGoogle Scholar
  2. 2.
    M.J. Musolf, Phys. Rep. 239, 1 (1994).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.Institut für Kernphysik,MainzGermany

Personalised recommendations