Moments of the neutron g[subscript 2] structure function at intermediate Q[superscript 2]
Name
PhysRevC.92.015208.pdf
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336.4 KB
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Author(s)
Solvignon, P.
Liyanage, N.
Chen, J.-P.
Choi, Seonho
Slifer, K.
Aniol, K.
Averett, T.
Boeglin, W.
Camsonne, A.
Cates, G. D.
Date Issued
July 2015
Journal
Physical Review C
Publisher
American Physical Society
Citation
Solvignon, P., et al. "Moments of the neutron g[subscript 2] structure function at intermediate Q[superscript 2]." Phys. Rev. C 92, 015208 (July 2015). © 2015 American Physical Society
Version
Final published version
Abstract
We present new experimental results for the [superscript 3]He spin structure function g[subscript 2] in the resonance region at Q[superscript 2] values between 1.2 and 3.0 (GeV/c)[superscript 2]. Spin dependent moments of the neutron were extracted. Our main result, the inelastic contribution to the neutron d[subscript 2] matrix element, was found to be small at 〈Q[superscript 2]〉 = 2.4 (GeV/c)[superscript 2] and in agreement with the lattice QCD calculation. The Burkhardt-Cottingham sum rule for [superscript 3]He and the neutron was tested with the measured data and using the Wandzura-Wilczek relation for the low x unmeasured region.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevC.92.015208
