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Spin Structure Function g(sub 2).


DE2003812644

Publication Date 2003
Personal Author Rock, S.
Page Count 10
Abstract We have measured the spin structure functions g(sub 2)(sup p) and g(sub 2)(sup d) over the kinematic range 0.02(le) x(le) 0.8 and 0.7(le) Q(sup 2)(le) 20 GeV(sup 2) by scattering 29.1 and 32.3 GeV longitudinally polarized electrons from transversely polarized NH(sub 3) and (sup 6)LiD targets. Our measured g(sub 2) approximately follows the twist-2 Wandzura-Wilczek calculation. The twist-3 reduced matrix elements d(sub 2)(sup p) and d(sub 2)(sup n) are less than two standard deviations from zero. The data are inconsistent with the Burkhardt-Cottingham sum rule. The Efremov-Leader-Teryaev integral is consistent with zero within our measured kinematic range.
Keywords
  • Spin
  • Structure functions
  • Kinematic ranges
  • Scattering
  • Spin structure functions
  • Polarized electrons
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors Massachusetts Univ., Amherst.; Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes Prepared in cooperation with Stanford Linear Accelerator Center, CA. Sponsored by Department of Energy, Washington, DC.
Document Type Technical Report
NTIS Issue Number 200409
Spin Structure Function g(sub 2).
Spin Structure Function g(sub 2).
DE2003812644

  • Spin
  • Structure functions
  • Kinematic ranges
  • Scattering
  • Spin structure functions
  • Polarized electrons
  • Technical Information Center Oak Ridge Tennessee
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