Q2 Evolution of the Generalized Gerasimov-Drell-Hearn Integral for the Neutron using a H3e Target

Phys. Rev. Lett. 89, 242301 – Published 26 November 2002
M. Amarian et al. (Jefferson Lab E94010 Collaboration)


We present data on the inclusive scattering of polarized electrons from a polarized H3e target at energies from 0.862 to 5.06 GeV, obtained at a scattering angle of 15.5°. Our data include measurements from the quasielastic peak, through the nucleon resonance region, and beyond, and were used to determine the virtual photon cross-section difference σ1/2-σ3/2. We extract the extended Gerasimov-Drell-Hearn integral for the neutron in the range of four-momentum transfer squared Q2 of 0.10.9   GeV2.

DOI: http://dx.doi.org/10.1103/PhysRevLett.89.242301

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  • Received 15 May 2002
  • Published 26 November 2002

© 2002 The American Physical Society

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