Spin structure functions of the neutron g{sub 1}{sup n}: SLAC E154 results
Journal Article
·
· AIP Conference Proceedings
- Department of Physics, Temple University, Philadelphia, Philadelphia 19122 (United States)
We report on a precision measurement of the neutron spin structure function g{sub 1}{sup n} using deep inelastic scattering of polarized electrons by polarized {sup 3}He. For the kinematic range 0.014<x<0.7 and 1(GeV/c){sup 2}<Q{sup 2}<17(GeV/c){sup 2}, we obtain {integral}{sub 0.014}{sup 0.7} g{sub 1}{sup n}(x)dx=-0.036{+-}0.004(stat){+-}0.005(syst) at an average Q{sup 2}=5(GeV/c){sup 2}. We find relatively large negative values for g{sub 1}{sup n} at low x. The results call into question the usual Regge theory method for extrapolating to x=0 to find the full neutron integral {integral}{sub 0}{sup 1}g{sub 1}{sup n}(x)dx, needed for testing quark-parton model and QCD sum rules.
- OSTI ID:
- 21167639
- Journal Information:
- AIP Conference Proceedings, Vol. 407, Issue 1; Conference: 5. international workshop on deep inelastic scattering and QCD, Chicago, IL (United States), 14-18 Apr 1997; Other Information: DOI: 10.1063/1.53727; (c) 1997 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
DEEP INELASTIC SCATTERING
ELECTRON BEAMS
ELECTRON REACTIONS
ELECTRONS
FOUR MOMENTUM TRANSFER
GEV RANGE
HELIUM 3 TARGET
NEUTRONS
PARTICLE KINEMATICS
POLARIZED BEAMS
POLARIZED TARGETS
QUANTUM CHROMODYNAMICS
QUARKS
SPIN
STANFORD LINEAR ACCELERATOR CENTER
STRUCTURE FUNCTIONS
SUM RULES
ACCURACY
DEEP INELASTIC SCATTERING
ELECTRON BEAMS
ELECTRON REACTIONS
ELECTRONS
FOUR MOMENTUM TRANSFER
GEV RANGE
HELIUM 3 TARGET
NEUTRONS
PARTICLE KINEMATICS
POLARIZED BEAMS
POLARIZED TARGETS
QUANTUM CHROMODYNAMICS
QUARKS
SPIN
STANFORD LINEAR ACCELERATOR CENTER
STRUCTURE FUNCTIONS
SUM RULES