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Recent EMC results on the spin-dependent structure function g/sub 1/ of the proton

Conference · · AIP Conf. Proc.; (United States)
OSTI ID:6314622
The NA2' experiment at CERN has measured the spin asymmetry in deep-inelastic polarized muon-proton scattering and extracted the spin-dependent structure function g/sub 1/ of the proton. The integral of g/sub 1/ over x was found to be 0.114 +- 0.012 +- 0.026, in disagreement with the Ellis-Jaffe sum rule. An implication is that the quarks account for only a small fraction of the proton spin.
Research Organization:
Physics Department, Yale University, New Haven, CT 06520
OSTI ID:
6314622
Report Number(s):
CONF-8805142-
Conference Information:
Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 176:1
Country of Publication:
United States
Language:
English