Moments of the neutron g(2) structure function at intermediate Q(2)

Academic Article

Abstract

  • We present new experimental results of the $^3$He spin structure function $g_2$ in the resonance region at $Q^2$ values between 1.2 and 3.0 (GeV/c)$^2$. Spin dependent moments of the neutron were then extracted. Our main result, the resonance contribution to the neutron $d_2$ matrix element, was found to be small at $$=2.4 (GeV/c)$^2$ and in agreement with the Lattice QCD calculation. The Burkhardt-Cottingham sum rule for $^3$He and the neutron was tested with the measured data and using the Wandzura-Wilczek relation for the low $x$ unmeasured region. A small deviation was observed at $Q^2$ values between 0.5 and 1.2 (GeV/c)$^2$ for the neutron.
  • Authors

  • Solvignon, P
  • Liyanage, N
  • Chen, J-P
  • Choi, Seonho
  • Slifer, Karl
  • Aniol, K
  • Averett, T
  • Boeglin, W
  • Camsonne, A
  • Cates, GD
  • Chang, CC
  • Chudakov, E
  • Craver, B
  • Cusanno, F
  • Deur, A
  • Dutta, D
  • Ent, R
  • Feuerbach, R
  • Frullani, S
  • Gao, H
  • Garibaldi, F
  • Gilman, R
  • Glashausser, C
  • Gorbenko, V
  • Hansen, O
  • Higinbotham, DW
  • Ibrahim, H
  • Jiang, X
  • Jones, M
  • Kelleher, A
  • Kelly, J
  • Keppel, C
  • Kim, W
  • Korsch, W
  • Kramer, K
  • Kumbartzki, G
  • LeRose, JJ
  • Lindgren, R
  • Ma, B
  • Margaziotis, DJ
  • Markowitz, P
  • McCormick, K
  • Meziani, Z-E
  • Michaels, R
  • Moffit, B
  • Monaghan, P
  • Camacho, C Munoz
  • Paschke, K
  • Reitz, B
  • Saha, A
  • Shneor, R
  • Singh, J
  • Sulkosky, V
  • Tobias, A
  • Urciuoli, GM
  • Wang, K
  • Wijesooriya, K
  • Wojtsekhowski, B
  • Woo, S
  • Yang, J-C
  • Zheng, X
  • Zhu, L
  • Collaboratio, Jefferson Lab E01-012
  • Status

    Publication Date

  • July 15, 2015
  • Published In

    Keywords

  • nucl-ex
  • Digital Object Identifier (doi)

    Start Page

  • 015208
  • Volume

  • 92
  • Issue

  • 1