Phys. Rev. Lett.
101,
182502
(2008)
[5 pages]
Quark-Hadron Duality in Neutron (3He) Spin Structure
P. Solvignon et al. Jefferson Lab E01-012 Collaboration
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P. Solvignon21,1, N. Liyanage22, J.-P. Chen12, Seonho Choi21, K. Aniol3, T. Averett23, W. Boeglin7, A. Camsonne2, G. D. Cates22, C. C. Chang15, E. Chudakov12, B. Craver22, F. Cusanno9, A. Deur22, D. Dutta4, R. Ent12, R. Feuerbach12, S. Frullani9, H. Gao4, F. Garibaldi9, R. Gilman12,19, C. Glashausser19, V. Gorbenko11, O. Hansen12, D. W. Higinbotham12, H. Ibrahim18, X. Jiang19, M. Jones12, A. Kelleher23, J. Kelly15, C. Keppel8,12, W. Kim14, W. Korsch13, K. Kramer23, G. Kumbartzki18, J. J. LeRose12, R. Lindgren22, B. Ma17, D. J. Margaziotis3, P. Markowitz7, K. McCormick18, Z.-E. Meziani20, R. Michaels12, B. Moffit23, P. Monaghan17, C. Munoz Camacho5, K. Paschke16, B. Reitz12, A. Saha12, R. Sheyor20, J. Singh22, K. Slifer21, V. Sulkosky23, A. Tobias22, G. M. Urciuoli10, K. Wang22, K. Wijesooriya4, B. Wojtsekhowski12, S. Woo14, J.-C. Yang6, X. Zheng1, and L. Zhu17 (Jefferson Lab E01-012 Collaboration)
1Argonne National Laboratory, Argonne, Illinois 60439, USA
2Université Blaise Pascal et CNRS/IN2P3 LPC, 63177 Aubière Cedex, France
3California State University, Los Angeles, Los Angeles, California 90032, USA
4Duke University, Durham, North Carolina 27708, USA
5CEA Saclay, DAPNIA/SPhN, F-91191 Gif sur Yvette, France
6Chungnam National University, Taejon 305-764, Korea
7Florida International University, Miami, Florida 33199, USA
8Hampton University, Hampton, Virginia 23187
9Istituto Nazionale di Fisica Nucleare, Gruppo Collegato Sanitá, Seziona di Roma, 00161 Roma, Italy
10Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Roma, Italy
11Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
12Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
13University of Kentucky, Lexington, Kentucky 40506, USA
14Kyungpook National University, Taegu City, South Korea
15University of Maryland, College Park, Maryland 20742, USA
16University of Massachusetts, Amherst, Massachusetts 01003, USA
17Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
18Old Dominion University, Norfolk, Virginia 23529, USA
19Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
20University of Tel Aviv, Tel Aviv, 69978 Israel
21Temple University, Philadelphia, Pennsylvania 19122, USA
22University of Virginia, Charlottesville, Virginia 22904, USA
23College of William and Mary, Williamsburg, Virginia 23187, USA
Received 26 March 2008; published 30 October 2008
We present experimental results of the first high-precision test of quark-hadron duality in the spin-structure function g1 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 g1 down to at least Q2=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.
© 2008 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.182502
DOI:
10.1103/PhysRevLett.101.182502
PACS:
25.30.−c, 13.60.Hb, 13.88.+e, 14.20.Dh
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