Measurement of the neutron spin structure function g{sub 1}{sup n} and a pQCD NLO analysis
Journal Article
·
· AIP Conference Proceedings
- American University, Washington, District of Columbia 20016 (United States)
We have measured the spin structure function of the neutron g{sub 1}{sup n} in the kinematic region 0.014{<=}x{<=}0.7 and 1{<=}Q{sup 2}{<=}15. The experiment was done at SLAC by scattering longitudinal polarized 48.3 GeV electrons from a He{sup 3} target polarized in the longitudinal and transverse directions. g{sub 1}{sup n} becomes more negative with decreasing x in a manner inconsistent with naive single pole Regge theory. In the kinematic region 0.08{<=}x{<=}0.4 we can determine the Q{sup 2} dependence of g{sub 1}{sup n} using data from both our spectrometers. A Next to Leading Order Perturbative QCD analysis has been made with this and previous data to extract the parton distributions and make an estimate of the very low x behavior.
- OSTI ID:
- 21175429
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 412; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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