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Forward produced hadrons in μp and μd scattering and investigation of the charge structure of the nucleon
Department of Physics, University of Sheffield, Sheffield, United Kingdom.
Department of Radiation Science, University of Uppsala, Uppsala, Sweden.ORCID iD: 0000-0002-9007-0410
III Physikalisches Institut A, Physikzentrum, RWTH, Aachen, Germany.
Number of Authors: 98
1991 (English)In: Zeitschrift für Physik C Particles and Fields, ISSN 0170-9739, E-ISSN 1431-5858, Vol. 52, no 3, 361-387 p.Article in journal (Refereed) Published
Abstract [en]

Final data measured with the EMC forward spectrometer are presented on the production of forward charged hadrons in mu-p and mu-d scattering at incident beam energies between 100 and 280 GeV. The large statistic of 373000 events allows a study of the semi-inclusive hadron production as a function of z, p(T)2 and <p(T)2> in small Q2, x(Bj) and W bins. Charge multiplicity ratios and differences as a function of z and x(Bj) are given for p, d and n-targets. From the differences of charge multiplicities the ratio of the valence quark distributions of the proton d-upsilon(x)/u-upsilon(x) is determined for the first time in charged lepton scattering. The Gronau et al. sum rule is tested, the measured sum being 0.31 +/- 0.06 stat. +/- 0.05 syst., compared with the theoretical expectation of 2/7 almost-equal-to 0.286. The measured sum corresponds to an absolute value of the ratio of the d and u quark charge of 0.44 +/- 0.10 stat. +/- 0.08 syst.

Place, publisher, year, edition, pages
Springer, 1991. Vol. 52, no 3, 361-387 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:oru:diva-57752DOI: 10.1007/BF01559431ISI: A1991GR57600002ScopusID: 2-s2.0-0001151669OAI: oai:DiVA.org:oru-57752DiVA: diva2:1098161
Available from: 2017-05-23 Created: 2017-05-23 Last updated: 2017-05-23Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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