Spin Structure Functions g{sub 1} and g{sub 2} for the Proton and Deuteron
The experiment E155 at SLAC measured the spin structure functions g{sub 1} and g{sub 2} of the proton and deuteron. The experiment used deep inelastic scattering of 48.3 GeV longitudinally polarized electrons incident on polarized solid {sup 15}NH{sub 3} and {sup 6}LiD targets. The data taken by three independent spectrometers covered a kinematic range of 0.014 < x < 0.9 and 1 (GeV/c){sup 2} < Q{sup 2} < 40 (GeV/c){sup 2}. Due to the high luminosity and polarization available at SLAC the data on g{sub 1} are to date the most precise in this kinematic range. The x and Q{sup 2} dependence of g{sub 1} has been studied using NLO PQCD fits, allowing extraction of values for the Bjorken sum rule and quark and gluon spin contributions to the nucleon. Results are presented for g{sub 1} and g{sub 2} for the proton and deuteron.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 10044
- Report Number(s):
- SLAC-PUB-8104; TRN: US0103320
- Resource Relation:
- Other Information: PBD: 7 Apr 1999
- Country of Publication:
- United States
- Language:
- English
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