- Conference date: 14-19 May 1988
- Location: Rockport, ME, USA
It is possible to measure the deep‐inelastic spin‐dependent structure functions g p 1(x) and g n 1(x) for the proton and neutron using internal polarized hydrogen, deuterium, and 3He targets of polarization 50% and thickness 1014 to 101 5 cm− 2 and the 60 mA longitudinally polarized 30 GeV electron beam in the HERA electron storage ring at DESY, Hamburg, W. Germany. The measurement of the deep‐inelastic spin‐structure of both isospin states of the nucleon at the same kinematics and using the same apparatus allows the Bjorken sum rule to be experimentally checked. In addition, it uniquely constrains the spin distribution of the u and d quarks as a function of x in any model of the nucleon. Possible target and detector configurations are described and an estimate of the accuracy of such a measurement is presented.
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