Published May 19, 1988
| Version v1
Journal article
A measurement of the spin asymmetry and determination of the structure function g1 in deep inelastic muon-proton scattering
Creators
- Ashman, J.1
- Combley, F.1
- Salmon, D.1
- Wheeler, S.1
- Badelek, B.2, 3
- Ciborowski, J.2, 3
- Gajewski, J.2, 3
- Nassalski, J.2, 3
- Rondio, E.2, 3
- Ropelewski, L.2, 3
- Sandacz, A.2, 3
- Baum, G.4
- Caputo, M.C.4
- Hughes, V.W.4
- Oppenheim, R.F.4
- Papavassiliou, V.4
- Piegaia, R.4
- Schueler, K.P.4
- Beaufays, J.5
- Jacholkowska, A.5
- Niinikoski, T.5
- Osborne, A.M.5
- Rieubland, J.M.5
- Rijllart, A.5
- Bee, C.P.6
- Brown, S.C.6
- Court, G.6
- Francis, D.6
- Gabathuler, E.6
- Gamet, R.6
- Hayman, P.6
- Holt, J.R.6
- Jones, T.6
- Matthews, M.6
- Wimpenny, S.J.6
- Benchouk, C.7
- D'Agostini, G.7
- Montanet, F.7
- Pietrzyk, B.7
- Bird, I.G.8
- Dyce, N.8
- Sloan, T.8
- Cheung, H.W.K.9
- Gibson, V.9
- Gillies, J.9
- Loken, J.9
- Renton, P.9
- Taylor, G.N.9
- Williams, W.S.C.9
- Womersley, W.J.9
- Chima, J.10
- Clifft, R.W.10
- Edwards, M.10
- Norton, P.R.10
- Oakham, G.10
- Thompson, J.C.10
- Coignet, G.11
- Drees, J.12
- Edwards, A.W.12
- Hamacher, K.12
- Korzen, B.12
- Kruener, U.12
- Moenig, K.12
- Pavel, N.12
- Peschel, H.12
- Pietrzyk, U.12
- Dueren, M.13
- Lanske, D.13
- Schultze, K.13
- Ziemons, K.13
- Ernst, T.14
- Kabuss, E.M.14
- Landgraf, U.14
- Rith, K.14
- Schroeder, T.14
- Stier, H.14
- Stock, J.14
- Ferrero, M.I.15
- Peroni, C.15
- Grafstroem, P.16
- Kullander, S.16
- Lettenstroem, F.16
- Lindqvist, T.16
- Harrach, D. von17
- Mizuno, Y.17
- Povh, B.17
- Shibata, T.A.17
- Staiano, A.17
- Walcher, T.17
- Windmolders, R.18
- European Muon Collaboration
- 1. Sheffield Univ. (UK). Dept. of Physics
- 2. Institute for Nuclear Studies, Warsaw (Poland)
- 3. Warsaw Univ. (Poland). Inst. of Physics
- 4. Yale Univ., New Haven, CT (USA). Dept. of Physics
- 5. European Organization for Nuclear Research, Geneva (Switzerland)
- 6. Liverpool Univ. (UK). Dept. of Physics
- 7. Aix-Marseille-2 Univ., 13 - Marseille (France). Faculte des Sciences de Luminy
- 8. Lancaster Univ. (UK). Dept. of Physics
- 9. Oxford Univ. (UK). Nuclear Physics Lab.
- 10. Rutherford Appleton Lab., Chilton (UK)
- 11. Grenoble-1 Univ., 74 - Annecy (France). Lab. de Physique des Particules
- 12. Wuppertal Univ. (Gesamthochschule) (Germany, F.R.). Fachbereich 8 - Naturwissenschaften 1 - Physik
- 13. Technische Hochschule Aachen (Germany, F.R.). Lehrstuhl fuer Experimentalphysik 3B und 3. Physikalisches Inst.
- 14. Freiburg Univ. (Germany, F.R.). Fakultaet fuer Physik
- 15. Turin Univ. (Italy). Ist. di Fisica
- 16. Uppsala Univ. (Sweden). Gustaf Werner Inst.
- 17. Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany, F.R.)
- 18. Mons Univ. (Belgium). Faculte des Sciences
Description
The spin asymmetry in deep inelastic scattering of longitudinally polarised muons by longitudinally polarised protons has been measured over a large x range (0.01 < x < 0.7). The spin-dependent structure function g1(x) for the proton has been determined and its integral over x found to be 0.114±0.012±0.026, in disagreement with the Ellis-Jaffe sum rule. Assuming the validity of the Bjorken sum rule, this result implies a significant negative value for the integral of g1 for the neutron. These values for the integrals of g1 lead to the conclusion that the total quark spin constitutes a rather small fraction of the spin of the nucleon. (orig.)
Additional details
Publishing Information
- Journal Title
- Phys. Lett., B
- Journal Volume
- 206
- Journal Issue
- 2
- Series
- Phys. Lett., B.
- Journal Page Range
- 364-370
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 19075018
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DEEP INELASTIC SCATTERING; EXPERIMENTAL DATA; GEV RANGE 100-1000; MUON-PROTON INTERACTIONS; POLARIZATION-ASYMMETRY RATIO; POLARIZED BEAMS; POLARIZED TARGETS; STRUCTURE FUNCTIONS
- Descriptors DEC
- BEAMS; DATA; ENERGY RANGE; FUNCTIONS; GEV RANGE; INELASTIC SCATTERING; INFORMATION; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; MUON-NUCLEON INTERACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; SCATTERING; TARGETS
Optional Information
- Contract/Grant/Project number
- Contract CPBP 01.06; CPBP 01.09
- Collaborations
- European Muon Collaboration.