Quark-Hadron Duality in Neutron (3He) Spin Structure

• Published in: Physical review letters Vol. 101
• Main Authors: Solvignon, Patricia, Liyanage, Nilanga, Chen, Jian-Ping, Choi, Seonho, Aniol, Konrad, Averett, Todd, Boeglin, Werner, Camsonne, Alexandre, Cates, Gordon, Chang, C, Chang, C C, Chudakov, Eugene, Craver, Brandon, Cusanno, Francesco, Deur, Alexandre, Dutta, Dipangkar, Ent, Rolf, Feuerbach, Robert, Frullani, Salvatore, Gao, Haiyan, Garibaldi, Franco, Gilman, Ronald, Glashausser, Charles, Gorbenko, Viktor, Hansen, Jens-Ole, Higinbotham, Douglas, Ibrahim, Hassan, Jiang, Xiaodong, Jones, Mark, Kelleher, Aidan, Kelly, J, Keppel, Cynthia, Kim, Wooyoung, Korsch, Wolfgang, Kramer, Kevin, Kumbartzki, Gerfried, LeRose, John, Lindgren, Richard, Ma, Bin, Margaziotis, Demetrius, Markowitz, Pete, McCormick, Kathy, Meziani, Zein-Eddine, Michaels, Robert, Moffit, Bryan, Monaghan, Peter, Munoz-Camacho, Carlos, Paschke, Kent, Reitz, Bodo, Saha, Arunava, Sheyor, Ran, Singh, Jaideep, Slifer, Karl, Sulkosky, Vince, Sulkosky, Vincent, Tobias, William, Urciuoli, Guido, Wang, Kebin, Wijesooriya, Krishni, Wojtsekhowski, Bogdan, Woo, Seungtae, Yang, Jae-Choon, Zheng, Xiaochao, Zhu, Lingyan
• Format: Journal Article
• Language: English
• Published: United States 01-10-2008
• Subjects: ASYMMETRY; DUALITY; HELIUM 3; NEUTRONS; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; RESONANCE; SPIN; STRUCTURE FUNCTIONS; TARGETS
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PhysRevLett.101.182502

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.