Last Experimental Results Obtained at SLAC on the Nucleon Spin Structure
- SLAC
Recent precise measurements of the spin structure function g{sub 1} for proton and for deuteron using deep inelastic scattering of polarized electrons from polarized ammonia targets are presented. The integrals {Gamma}{sub 1} = {integral}{sub 0}{sup 1} g{sub 1}(x)dx evaluated at the average experimental Q = 3(GeV/c){sup 2} are in agreement with previous results and well below the Ellis-Jaffe sumrule prediction, while the Bjoerken sumrule prediction on {Gamma}{sub 1}{sup p} - {Gamma}{sub 1}{sup n} is satisfied. The analysis of the results in term of Quark Parton Model implies that the quark carry about a third of the nucleon helicity.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515;
- OSTI ID:
- 813298
- Report Number(s):
- SLAC-PUB-10044
- Country of Publication:
- United States
- Language:
- English
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