Measurements of the Q2-dependence of the proton and deuteron spin structure functions g1 p and g1 d

K. Abe, T. Akagi, P. L. Anthony, R. Antonov, R. G. Arnold, T. Averett, H. R. Band, J. M. Bauer, H. Borel, P. E. Bosted, V. Breton, J. Button-Shafer, J. P. Chen, T. E. Chupp, J. Clendenin, C. Comptour, K. P. Coulter, G. Court, D. Crabb, M. DaoudiD. Day, F. S. Dietrich, J. Dunne, H. Dutz, R. Erbacher, J. Fellbaum, A. Feltham, H. Fonvieille, E. Frlez, D. Garvey, R. Gearhart, J. Gomez, P. Grenier, K. A. Griffioen, S. Hoibraten, E. W. Hughes, C. Hyde-Wright, J. R. Johnson, D. Kawall, A. Klein, S. E. Kuhn, M. Kuriki, R. Lindgren, T. J. Liu, R. M. Lombard-Nelsen, J. Marroncle, T. Maruyama, X. K. Maruyama, J. McCarthy, W. Meyer, Z. E. Meziani, R. Minehart, J. Mitchell, J. Morgenstern, G. G. Petratos, R. Pitthan, D. Pocanic, C. Prescott, R. Prepost, P. Raines, B. Raue, D. Reyna, A. Rijllart, Y. Roblin, L. S. Rochester, S. E. Rock, O. A. Rondon, I. Sick, L. C. Smith, T. B. Smith, M. Spengos, F. Staley, P. Steiner, S. St Lorant, L. M. Stuart, F. Suekane, Z. M. Szalata, H. Tang, Y. Terrien, T. Usher, D. Walz, J. L. White, K. Witte, C. C. Young, B. Youngman, H. Yuta, G. Zapalac, B. Zihlmann, D. Zimmermann

Research output: Contribution to journalArticlepeer-review

106 Citations (Scopus)

Abstract

The ratio g1 F1 has been measured over the range 0.03 < x < 0.6 and 0.3 < Q2 < 10 (GeV/c)2 using deep-inelastic scattering of polarized electrons from polarized protons and deuterons. We find g1 F1 to be consistent with no Q2-dependence at fixed x in the deep-inelastic region Q2 > 1 (GeV/c)2. A trend is observed for g1 F1 to decrease at lower Q2. Fits to world data with and without a possible Q2-dependence in g1 F1 are in agreement with the Bjorken sum rule, but Δq is substantially less than the quark-parton model expectation.

Original languageEnglish
Pages (from-to)61-68
Number of pages8
JournalPhysics Letters B
Volume364
Issue number1
DOIs
Publication statusPublished - 1995 Dec 7

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Measurements of the Q<sup>2</sup>-dependence of the proton and deuteron spin structure functions g<sub>1</sub> <sup>p</sup> and g<sub>1</sub> <sup>d</sup>'. Together they form a unique fingerprint.

Cite this