Measurement of the neutron spin structure function g{sub 1}{sup n} and a pQCD NLC analysis

Journal Article · Thu May 01 04:00:00 EDT 1997 · AIP Conference Proceedings

OSTI ID:627694

Rock, S ^[1]

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1. American University, Washington, District of Columbia20016 E154 Collaboration (United States)

We have measured the spin structure function of the neutron g{sub 1}{sup n} in the kinematic region 0.014{le}x{le}0.7 and 1{le}Q{sup 2}{le}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{le}x{le}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. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 627694
• Report Number(s): CONF-970564--
• 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

Related Subjects

66 PHYSICS
DEEP INELASTIC SCATTERING
ELECTRON REACTIONS
GEV RANGE 10-100
HELIUM 3 TARGET
NEUTRONS
PERTURBATION THEORY
POLARIZATION-ASYMMETRY RATIO
POLARIZED BEAMS
POLARIZED TARGETS
QUANTUM CHROMODYNAMICS
STRUCTURE FUNCTIONS