Measurements of Q2 Evolution of the GDH Sum Rule and the Spin Structure of the 3He and the Neutron

  • J. P. Chen
Conference paper
Part of the Few-Body Systems book series (FEWBODY, volume 12)


We have recently completed experiment E94-010 at Jefferson Lab. The experiment used a polarized 3He target and polarized electron beam to measure asymmetries and cross sections for 3 He(e,e′) from threshold to deep inelastic region, covering the quasielastic and the resonance region.The Q2 range covered is from 0.03 to 1 GeV2. Prom these data, the 3He and the neutron spin structure and the Q2 evolution of the Gerasimov-Drell-Hearn (GDH) sum rule will be studied This is the first measurement of the Q2 evolution of the GDH sum rule. Preliminary results are presented. Plan for future study on this subject at Jefferson Lab is discussed.


Spin Structure Chiral Perturbation Theory Nucleon Spin Polarize Electron Beam Twist Expansion 
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Copyright information

© Springer-Verlag Wien 2000

Authors and Affiliations

  • J. P. Chen
    • 1
  1. 1.Jefferson LabNewport NewsUSA

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