Experimental determination of the evolution of the Bjorken integral at low Q{sup 2}
Journal Article
·
OSTI ID:825561
We extract the Bjorken integral {Gamma}{sub 1}{sup p-n} in the range 0.17 < Q{sup 2} < 1.10 GeV{sup 2} from inclusive scattering of polarized electrons by polarized protons, deuterons and {sup 3}He, for the region in which the integral is dominated by nucleon resonances. These data bridge the domains of the hadronic and partonic descriptions of the nucleon. In combination with earlier measurements at higher Q{sup 2}, we extract the non-singlet twist-4 matrix element f{sub 2}.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 825561
- Report Number(s):
- JLAB-PHY-04-241l; DOE/ER/40150-2803; TRN: US0402566
- Resource Relation:
- Other Information: No journal information given for this preprint; PBD: 1 Jul 2004
- Country of Publication:
- United States
- Language:
- English
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