Moments of the neutron g[subscript 2] structure function at intermediate Q[superscript 2]
- Solvignon, P.
- Liyanage, N.
- Chen, J.-P.
- Choi, Seonho
- Slifer, K.
- Aniol, K.
- Averett, T.
- Boeglin, W.
- Camsonne, A.
- Cates, G. D.
- Chang, C. C.
- 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, D. W.
- Ibrahim, H. F.
- Jiang, X.
- Jones, M.
- Kelleher, A.
- Kelly, J.
- Keppel, C. E.
- Kim, W.
- Korsch, W.
- Kramer, K.
- Kumbartzki, G.
- LeRose, J. J.
- Lindgren, R.
- Margaziotis, D. J.
- Markowitz, P.
- McCormick, K.
- Meziani, Z.-E.
- Michaels, R.
- Moffit, Bryan J.
- Munoz Camacho, C.
- Paschke, K.
- Reitz, B.
- Saha, A.
- Shneor, R.
- Singh, J.
- Sulkosky, V.
- Tobias, A.
- Urciuoli, G. M.
- Wang, K.
- Wijesooriya, K.
- Wojtsekhowski, B.
- Woo, S.
- Yang, J.-C.
- Zheng, X.
- Ma, Bin
- Monaghan, Peter
- Zhu, Lingyan
Publication date
July 2015
DOI Publisher
American Physical Society (APS) Journal
Physical Review CAbstract
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.National Science Foundation (U.S.)United States. Dept. of Energy (Contract DE-AC05-060R23177
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