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A new measurement of the spin-dependent structure function g1(x) of the deuteron

  • D. Adams*
  • , B. Adeva
  • , E. Arik
  • , A. Arvidson
  • , B. Badelek
  • , M. K. Ballintijn
  • , G. Bardin
  • , G. Baum
  • , P. Berglund
  • , L. Betev
  • , R. Birsa
  • , P. Björkholm
  • , B. E. Bonner
  • , N. de Botton
  • , F. Bradamante
  • , A. Bressan
  • , S. Bültmann
  • , E. Burtin
  • , C. Cavata
  • , M. Clocchiatti
  • D. Crabb, J. Cranshaw, T. Çuhadar, S. Dalla Torre, R. van Dantzig, A. Deshpande, S. Dhawan, C. Dulya, A. Dyring, S. Eichblatt, D. Fasching, F. Feinstein, C. Fernandez, B. Frois, J. A. Garzon, M. Giorgi, E. von Goeler, G. Gracia, R. Granier de Cassagnac, N. de Groot, M. Grosse Perdekamp, E. Gülmez, D. von Harrach, T. Hasegawa, P. Hautle, N. Hayashi, C. A. Heusch, N. Horikawa, V. W. Hughes, G. Igo, S. Ishimoto, T. Iwata, E. M. Kabuß, T. Kageya, A. Karev, H. J. Kessler, T. J. Ketel, A. Kishi, Yu Kisselev, L. Klostermann, D. Krämer, V. Krivokhijine, W. Kröger, K. Kurek, J. Kyynäräinen, M. Lamanna, U. Landgraf, J. M. Le Goff, F. Lehar, A. de Lesquen, J. Lichtenstadt, M. Litmaath, S. Lopez-Ponte, M. Lowe, A. Magnon, G. K. Mallot, F. Marie, A. Martin, J. Martino, T. Matsuda, B. Mayes, J. S. McCarthy, K. Medved, G. van Middelkoop, D. Miller, K. Mori, J. Moromisato, A. Nagaitsev, J. Nassalski, L. Naumann, T. O. Niinikoski, J. E.J. Oberski, A. Ogawa, C. Ozben, A. Penzo, C. Perez, F. Perrot-Kunne, D. Peshekhonov, R. Piegaia, L. Pinsky, S. Platchkov, M. Plo, D. Pose, H. Postma, J. Pretz, T. Pussieux, J. Pyrlik, I. Reyhancan, A. Rijllart, J. B. Roberts, S. Rock, M. Rodriguez, E. Rondio, I. Sabo, J. Saborido, A. Sandacz, I. Savin, P. Schiavon, R. Segel, R. Seitz, Y. Semertzidis, P. Shanahan, E. P. Sichtermann, G. I. Smirnov, A. Staude, A. Steinmetz, U. Stiegler, H. Stuhrmann, M. Szleper, F. Tessarotto, M. Velasco, J. Vogt, R. Voss, R. Weinstein, C. Whitten, R. Windmolders, R. Willumeit, W. Wislicki, A. Witzmann, A. M. Zanetti, J. Zhao
*Corresponding author for this work
  • Rice University
  • University of Santiago de Compostela
  • Bogazici University
  • Uppsala University
  • Delft University of Technology
  • CEA-Saclay Center
  • Bielefeld University
  • Aalto University
  • Ludwig Maximilian University of Munich
  • University of Trieste
  • University of Virginia
  • Yale University
  • University of California at Los Angeles
  • Northwestern University
  • University of Houston
  • National Science Foundation
  • CERN
  • Northeastern University
  • Johannes Gutenberg University Mainz
  • Nagoya University
  • Joint Institute for Nuclear Research
  • University of Freiburg
  • University of Warsaw
  • Tel Aviv University
  • Helmholtz-Zentrum Hereon
  • Universite de Mons

Research output: Contribution to journalArticlepeer-review

216 Scopus citations

Abstract

We present a new measurement of the spin-dependent structure function g1d of the deuteron in deep inelastic scattering of 190 GeV polarised muons on polarised deuterons, in the kinematic range 0.003 < x < 0.7 and 1 GeV2 < Q2 < 60 GeV2. This structure function is found to be negative at small x. The first moment Γ1d=∫01g 1ddx evaluated at Q02 = 10 GeV2 is 0.034 ± 0.009 (stat.) ± 0.006 (syst.). This value is below the Ellis-Jaffe sum rule prediction by three standard deviations. Using our earlier determination of Γ1p, we obtain Γ1p - Γ1n = 0.199 ± 0.038 which agrees with the Bjorken sum rule.

Original languageEnglish
Pages (from-to)248-254
Number of pages7
JournalPhysics Letters B
Volume357
Issue number1-2
DOIs
StatePublished - 31 Aug 1995

Funding

Funders
Comision Interministeriald e Ciencia y Tecnologia

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