Redesign of the A4 calorimeter for the measurement at backward angles

  • Boris Gläser
Conference paper


Backward angle measurements of the parity violating asymmetry in elastic electron proton scattering are planned with the A4 calorimeter. At present the experiment measures at forward angles. For the measurement at backward angles the support of the PbF2-detector has to be redesigned. For this purpose it will be positioned on a rotatable platform, so that measurements at forward and backward angles will be possible with little effort. We will highlight the new experimental setup and its special features.


Electromagnetic Form Factor Forward Angle Rotatable Platform Angular Acceptance Easy Position 
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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Boris Gläser
    • 1
  1. 1.Institut für KernphysikJohannes Gutenberg-Universität MainzMainzGermany

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