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26 April 2024

» arxiv » 0803.3845

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Quark-Hadron Duality in Neutron (3He) Spin Structure
P. Solvignon ; N. Liyanage ; J.-P. Chen ; Seonho Choi ; K. Aniol ; T. Averett ; W. Boeglin ; A. Camsonne ; G. D. Cates ; G. Chang ; E. Chudakov ; B. Craver ; F. Cusanno ; A. Deur ; D. Dutta ; R. Ent ; R. Feuerbach ; S. Frullani ; H. Gao ; F. Garibaldi ; R. Gilman ; C. Glashausser ; V. Gorbenko ; O. Hansen ; D. W. Higinbotham ; H. Ibrahim ; X. Jiang ; M. Jones ; A. Kelleher ; J. Kelly ; C. Keppel ; W. Kim ; W. Korsch ; K. Kramer ; G. Kumbartzki ; J. J. LeRose ; R. Lindgren ; B. Ma ; D. J. Margaziotis ; P. Markowitz ; K. McCormick ; Z.-E. Meziani ; R. Michaels ; B. Moffit ; P. Monaghan ; C. Munoz Camacho ; K. Paschke ; B. Reitz ; A. Saha ; R. Sheyor ; J. Singh ; K. Slifer ; V. Sulkosky ; A. Tobias ; G. M. Urciuoli ; K. Wang ; K. Wijesooriya ; B. Wojtsekhowski ; S. Woo ; J.-C. Yang ; X. Zheng ; L. Zhu ;
Date:	27 Mar 2008
Abstract:	We present experimental results of the first high-precision test of quark-hadron duality in the spin-structure function g_1 of the neutron and $^3$He using a polarized 3He target in the four-momentum-transfer-squared range from 0.7 to 4.0 (GeV/c)^2. Global duality is observed for the spin-structure function g_1 down to at least Q^2 = 1.8 (GeV/c)^2 in both targets. We have also formed the photon-nucleon asymmetry A_1 in the resonance region for 3He and found no strong Q^2-dependence above 2.2 (GeV/c)^2.
Source:	arXiv, 0803.3845
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