Higher Twists and Color Polarizabilities in the Neutron

Z. -E. Meziani; W. Melnitchouk; J. -P. Chen; Seonho Choi; T. Averett; G. Cates; C. W. de Jager; A. Deur; H. Gao; F. Garibaldi; R. Gilman; E. W. Hughes; X. Jiang; W. Korsch; K. Kramer; N. Liyanage; K. Slifer; J. -C. Yang

doi:10.1016/j.j.physletb.2005.03.046

arXiv · hep-ph/0404066

Higher Twists and Color Polarizabilities in the Neutron

Z. -E. Meziani·W. Melnitchouk·J. -P. Chen·Seonho Choi·T. Averett·G. Cates·C. W. de Jager·A. Deur·H. Gao·F. Garibaldi·R. Gilman·E. W. Hughes·X. Jiang·W. Korsch·K. Kramer·N. Liyanage·K. Slifer·J. -C. Yang

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Abstract

Color polarizabilities of the neutron are extracted from data on the lowest moment of the spin-dependent $g_1$ structure function. New data in the resonance region from Jefferson Lab at $Q^2 \alt 1$ GeV$^2$, in combination with world data at higher $Q^2$, allow a systematic determination of the $1/Q^2$ corrections, and provide the first constraints on $1/Q^4$ corrections. The results suggest that higher-twist effects in the neutron are small, and that quark-hadron duality may be approximately valid, even down to $Q^2 \sim 1$ GeV$^2$.

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Z. -E. Meziani, W. Melnitchouk, J. -P. Chen, Seonho Choi, T. Averett, G. Cates, C. W. de Jager, A. Deur, H. Gao, F. Garibaldi, R. Gilman, E. W. Hughes, X. Jiang, W. Korsch, K. Kramer, N. Liyanage, K. Slifer, J. -C. Yang. 2005-05-23. Higher Twists and Color Polarizabilities in the Neutron. https://doi.org/10.1016/j.j.physletb.2005.03.046

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