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Quark-hadron duality in spin structure functions g1p and g1d

  • P. E. Bosted
  • , K. V. Dharmawardane
  • , G. E. Dodge
  • , T. A. Forest
  • , S. E. Kuhn
  • , Y. Prok
  • , G. Adams
  • , M. Amarian
  • , P. Ambrozewicz
  • , M. Anghinolfi
  • , G. Asryan
  • , H. Avakian
  • , H. Bagdasaryan
  • , N. Baillie
  • , J. P. Ball
  • , N. A. Baltzell
  • , S. Barrow
  • , V. Batourine
  • , M. Battaglieri
  • , K. Beard
  • I. Bedlinskiy, M. Bektasoglu, M. Bellis, N. Benmouna, A. S. Biselli, B. E. Bonner, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. K. Brooks, S. Bültmann, V. D. Burkert, C. Butuceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, B. Carnahan, A. Cazes, S. Chen, P. L. Cole, P. Collins, P. Coltharp, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, V. Crede, J. P. Cummings, R. De Masi, R. Devita, E. De Sanctis, P. V. Degtyarenko, H. Denizli, L. Dennis, A. Deur, C. Djalali, J. Donnelly, D. Doughty, P. Dragovitsch, M. Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, P. Eugenio, R. Fatemi, G. Fedotov, R. J. Feuerbach, H. Funsten, M. Garçon, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, E. Golovatch, A. Gonenc, R. W. Gothe, K. A. Griffioen, M. Guidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidakis, K. Hafidi, R. S. Hakobyan, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, M. Huertas, C. E. Hyde-Wright, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, E. L. Isupov, M. M. Ito, D. Jenkins, H. S. Jo, K. Joo, H. G. Juengst, C. Keith, J. D. Kellie, M. Khandaker, K. Y. Kim, K. Kim, W. Kim, A. Klein, F. J. Klein, M. Klusman, M. Kossov, L. H. Kramer, V. Kubarovsky, J. Kuhn, S. V. Kuleshov, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, Ji Li, A. C.S. Lima, K. Livingston, H. Lu, K. Lukashin, M. MacCormick, J. J. Manak, N. Markov, S. McAleer, B. McKinnon, J. W.C. McNabb, B. A. Mecking, M. D. Mestayer, C. A. Meyer, T. Mibe, K. Mikhailov, R. Minehart, M. Mirazita, R. Miskimen, V. Mokeev, L. Morand, S. A. Morrow, M. Moteabbed, J. Mueller, G. S. Mutchler, P. Nadel-Turonski, J. Napolitano, R. Nasseripour, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, M. R. Niroula, R. A. Niyazov, M. Nozar, G. V. O'Rielly, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, C. Paterson, S. A. Philips, J. Pierce, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, S. Pozdniakov, B. M. Preedom, J. W. Price, D. Protopopescu, L. M. Qin, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, F. Ronchetti, G. Rosner, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, C. Salgado, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, J. Shaw, N. V. Shvedunov, A. V. Skabelin, E. S. Smith, L. C. Smith, D. I. Sober, A. Stavinsky, S. S. Stepanyan, S. Stepanyan, B. E. Stokes, P. Stoler, S. Strauch, R. Suleiman, M. Taiuti, S. Taylor, D. J. Tedeschi, U. Thoma, R. Thompson, A. Tkabladze, S. Tkachenko, L. Todor, C. Tur, M. Ungaro, M. F. Vineyard, A. V. Vlassov, L. B. Weinstein, D. P. Weygand, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, J. Yun, L. Zana, J. Zhang, B. Zhao, Z. Zhao
  • Thomas Jefferson National Accelerator Facility
  • Old Dominion University
  • National Accelerator Facility
  • Massachusetts Institute of Technology
  • University of Virginia
  • Rensselaer Polytechnic Institute
  • Florida International University
  • National Institute for Nuclear Physics
  • A. Alikhanian Yerevan Institute of Physics
  • College of William and Mary
  • Arizona State University
  • University of South Carolina
  • Florida State University
  • Kyungpook National University
  • James Madison University
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Carnegie Mellon University
  • George Washington University
  • Fairfield University
  • Rice University
  • Institut de Physique Nucléaire Orsay
  • University of Edinburgh
  • University of New Hampshire
  • Ohio University
  • Catholic University of America
  • Idaho State University
  • CEA Saclay
  • University of Pittsburgh
  • University of Glasgow
  • Christopher Newport University
  • Lomonosov Moscow State University
  • University of Richmond
  • University of California at Los Angeles
  • Argonne National Laboratory
  • Virginia Polytechnic Institute and State University
  • University of Connecticut
  • Norfolk State University
  • Los Alamos National Laboratory
  • University of Massachusetts
  • California State University Dominguez Hills
  • Justus Liebig University Giessen
  • Union College

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

New measurements of the spin structure functions of the proton and deuteron g1p(x,Q2) and g1d(x,Q2) in the nucleon resonance region are compared with extrapolations of target-mass-corrected next-to-leading-order (NLO) QCD fits to higher energy data. Averaged over the entire resonance region (W<2 GeV), the data and QCD fits are in good agreement in both magnitude and Q2 dependence for Q2>1.7 GeV2/c2. This "global" duality appears to result from cancellations among the prominent "local" resonance regions: in particular strong σ3/2 contributions in the Δ(1232) region appear to be compensated by strong σ1/2 contributions in the resonance region centered on 1.5 GeV. These results are encouraging for the extension of NLO QCD fits to lower W and Q2 than have been used previously.

Original languageEnglish
Article number035203
JournalPhysical Review C - Nuclear Physics
Volume75
Issue number3
DOIs
StatePublished - 7 Mar 2007

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