Neutron Spin Structure in the Resonance Region and Quark-Hadron Duality
Quark-Hadron duality has been experimentally demonstrated for the spin independent structure function F{sub 2}. Duality is observed when, at the same value of scaling variable x{sub bj}, the smooth scaling curve at high momentum transfer becomes an average over the resonances at lower momentum transfer. Jefferson Lab experiment 01-012 used the polarized {sup 3}He target in Hall A for an extraction of the neutron spin structure function g{sub 1}{sup n} and the virtual photon asymmetry A{sub 1}{sup n} in the resonance region over a Q{sup 2} range from 1.0 to 4.0 (GeV/c){sup 2}. Data from E01-012 combined with Deep Inelastic Scattering data will provide a test of quark-hadron duality predictions for g{sub 1}{sup n} and A{sub 1}{sup n}. This will be one of the first tests of the spin and flavor dependence of quark-hadron duality. The demonstration of duality for spin structure functions will enable us to use the resonance data to study the nucleon spin structure in the large x{sub bj} region.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE - Office of Energy Research (ER)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 876512
- Report Number(s):
- JLAB-PHY-04-214; DOE/ER/40150-3773; TRN: US0601049
- Resource Relation:
- Conference: 3rd International Symposium on the Gerasimov-Drell-Hearn Sum Rule and its Extensions (GDH 2004), Norfolk, Virginia, 2-5 Jun 2004
- Country of Publication:
- United States
- Language:
- English
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