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.; Jiang, X.; Jones, M.; Kelleher, A.; Kelly, J.; Keppel, C.; Kim, W.; Korsch, W.; Kramer, K.; Kumbartzki, G.; LeRose, J. J.; Lindgren, R.; Ma, B.; Margaziotis, D. J.; Markowitz, P.; McCormick, K.; Meziani, Z.-E.; Michaels, R.; Moffit, B.; Monaghan, P.; 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.; Zhu, L.

Author(s)

Solvignon, P.; Liyanage, N.; Chen, J.-P.; Choi, Seonho; Slifer, K.; ... Show more

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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.

Date issued

2015-07

URI

http://hdl.handle.net/1721.1/97752

Department

Massachusetts Institute of Technology. Department of Physics

Journal

Physical Review C

Publisher

American Physical Society

Citation

Version: Final published version

ISSN

0556-2813

1089-490X

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