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Quark-hadron duality in neutron (3He) spin structure
Authors:Solvignon P  Liyanage N  Chen J-P  Choi Seonho  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  Sheyor R  Singh J  Slifer K  Sulkosky V  Tobias A  Urciuoli G M  Wang K  Wijesooriya K  Wojtsekhowski B  Woo S
Affiliation:Argonne National Laboratory, Argonne, Illinois 60439, USA.
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 3He 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 A1 in the resonance region for 3He and found no strong Q2 dependence above 2.2 (GeV/c);{2}.
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