Phys. Rev. Lett.
89,
242301
(2002)
[6 pages]
Q2 Evolution of the Generalized Gerasimov-Drell-Hearn Integral for the Neutron using a 3He Target
M. Amarian et al. Jefferson Lab E94010 Collaboration
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M. Amarian6, L. Auerbach21, T. Averett7,24, J. Berthot5, P. Bertin5, W. Bertozzi12, T. Black12, E. Brash17, D. Brown11, E. Burtin19, J. R. Calarco14, G. D. Cates16,23, Z. Chai12, J.-P. Chen7, Seonho Choi21, E. Chudakov7, E. Cisbani6, C. W. de Jager7, A. Deur5,7,23, R. DiSalvo5, S. Dieterich18, P. Djawotho24, M. Finn24, K. Fissum12, H. Fonvieille5, S. Frullani6, H. Gao12, J. Gao2, F. Garibaldi6, A. Gasparian4, S. Gilad12, R. Gilman7,18, A. Glamazdin10, C. Glashausser18, E. Goldberg2, J. Gomez7, V. Gorbenko10, J.-O. Hansen7, F. W. Hersman14, R. Holmes20, G. M. Huber17, E. W. Hughes2, T. B. Humensky16, S. Incerti21, M. Iodice6, S. Jensen2, X. Jiang18, C. Jones2, G. M. Jones9, M. Jones24, C. Jutier5,15, A. Ketikyan25, I. Kominis16, W. Korsch9, K. Kramer24, K. S. Kumar13,16, G. Kumbartzki18, M. Kuss7, E. Lakuriqi21, G. Laveissiere5, J. Lerose7, M. Liang7, N. Liyanage7,12, G. Lolos17, S. Malov18, J. Marroncle19, K. McCormick15, R. McKeown2, Z.-E. Meziani21, R. Michaels7, J. Mitchell7, Z. Papandreou17, T. Pavlin2, G. G. Petratos8, D. Pripstein2, D. Prout8, R. Ransome18, Y. Roblin5, D. Rowntree12, M. Rvachev12, F. Sabatie15, A. Saha7, K. Slifer21, P. A. Souder20, T. Saito22, S. Strauch18, R. Suleiman8, K. Takahashi22, S. Teijiro22, L. Todor15, H. Tsubota22, H. Ueno22, G. Urciuoli6, R. Van der Meer7,17, P. Vernin19, H. Voskanian25, B. Wojtsekhowski7, F. Xiong12, W. Xu12, J.-C. Yang3, B. Zhang12, and P. Zolnierczuk9 (Jefferson Lab E94010 Collaboration)
2California Institute of Technology, Pasadena, California 91125
3Chungnam National University, Taejon 305-764, Korea
4Hampton University, Hampton, Virginia 23668
5LPC IN2P3/CNRS, Université Blaise Pascal, F-63170 Aubière CEDEX, France
6Istituto Nazionale di Fiscica Nucleare, Sezione Sanità, 00161 Roma, Italy
7Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606
8Kent State University, Kent, Ohio 44242
9University of Kentucky, Lexington, Kentucky 40506
10Kharkov Institute of Physics and Technology, Kharkov 310108, Ukraine
11University of Maryland, College Park, Maryland 20742
12Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
13University of Massachusetts–Amherst, Amherst, Massachusetts 01003
14University of New Hampshire, Durham, New Hampshire 03824
15Old Dominion University, Norfolk, Virginia 23529
16Princeton University, Princeton, New Jersey 08544
17University of Regina, Regina, Canada SK S4S 0A2
18Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855
19CEA Saclay, DAPNIA/SPhN, F-91191 Gif sur Yvette, France
20Syracuse University, Syracuse, New York 13244
21Temple University, Philadelphia, Pennsylvania 19122
22Tohoku University, Sendai 980, Japan
23University of Virginia, Charlottesville, Virginia 22904
24The College of William and Mary, Williamsburg, Virginia 23187
25Yerevan Physics Institute, Yerevan 375036, Armenia
Received 15 May 2002; published 26 November 2002
We present data on the inclusive scattering of polarized electrons from a polarized 3He target at energies from 0.862 to 5.06 GeV, obtained at a scattering angle of 15.5°. Our data include measurements from the quasielastic peak, through the nucleon resonance region, and beyond, and were used to determine the virtual photon cross-section difference σ1/2-σ3/2. We extract the extended Gerasimov-Drell-Hearn integral for the neutron in the range of four-momentum transfer squared Q2 of 0.1–0.9 GeV2.
© 2002 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.242301
DOI:
10.1103/PhysRevLett.89.242301
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