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Helicity dependence of the \(\gamma N\) interaction and the GDH sum rule

  • P. PedroniEmail author
Article

Abstract.

First measurements of pion photoproduction using circularly polarized photons on longitudinally polarized protons were carried out at MAMI (Mainz) in the energy range \(E_\gamma = 200\)-800 MeV. Results of the helicity dependence of the total inclusive photoabsorption cross-section and of the pion photoproduction channels will be presented. These data provide new input for multipole analyses and determine the main contribution to the Gerasimov-Drell-Hearn integral and the forward spin polarizability \(\gamma_0\).

Keywords

Energy Range Spin Polarizability Pion Photoproduction Multipole Analysis Helicity Dependence 
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.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.INFN-Sezione di PaviaPaviaItaly

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