The Gerasimov-Drell-Hearn (GDH) experiment is carried out at two accelerators to cover a wide photon energy range. At MAMI (Mainz), the low energy part of the resonance region from 0.2 to 0.8 GeV was measured. With the experimental setup at the electron stretcher accelerator, the photon energy range from 0.68 to 2.9 GeV was covered. This paper presents the helicity dependence of the total photoabsorption cross section on the proton in the photon energy range from 0.68 to 1.82 GeV.
|Journal||Physical Review Letters|
|Publication status||Published - Nov 7 2003|
ASJC Scopus subject areas
- Physics and Astronomy(all)