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A measurement of the proton structure functions from neutrino-hydrogen and antineutrino-hydrogen charged-current interactions |
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| Authors: | G T Jones R W L Jones B W Kennedy S W O'Neale H Klein D R O Morrison P Schmid H Wachsmuth F Hamisi D B Miller M M Mobayyen S Wainstein M Aderholz D Hantke E Hoffmann U F Katz J Kern N Schmitz W Wittek G Corrigan G Myatt D Radojicic P N Shotton S J Towers F W Bullock S Burke |
| Institution: | 1. Department of Physics, University of Birmingham, Birmingham, UK 4. CERN, European Organization for Nuclear Research, Geneva, Switzerland 5. Department of Physics, Imperial College, London, UK 6. Max-Planck Institut für Physik und Astrophysik, München, Germany 7. Department of Nuclear Physics, Oxford, UK 8. Department of Physics and Astronomy, University College London, London, UK |
| Abstract: | Within the framework of the quark-parton model, the quark and anti-quark structure functions of the proton have been measured by fitting them to the distributions of the events in the Bjorkeny variable. The data used form the largest sample of neutrino and antineutrino interactions on a pure hydrogen target available, and come from exposures of BEBC to the CERN wide band neutrino and antineutrino beams. It is found that the ratiod v /u v of valence quark distributions falls with increasing Bjorkenx. In the context of the quark-parton model the results constrain the isospin composition of the accompanying diquark system. Models involving scattering from diquarks are in disagreement with the data. |
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