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The ratio F2 n/F2 p in deep inelastic muon scattering
Paul Scherrer Institute, Villigen, Switzerland.
University of California, Institute for Particle Physics, Santa Cruz CA, United States.ORCID iD: 0000-0002-9007-0410
Max-Planck Institut für Kernphysik, Heidelberg, Germany.
Number of Authors: 69
1992 (English)In: Nuclear Physics B, ISSN 0550-3213, E-ISSN 1873-1562, Vol. 371, no 1-2, 3-31 p.Article in journal (Refereed) Published
Abstract [en]

Results are presented on the ratio of neutron and proton structure functions, F2n/F2p, deduced from deep inelastic scattering of muons from hydrogen and deuterium. The data, which were obtained at the CERN muon beam at 90 and 280 GeV incident energy, cover the kinematic range x = 0.002-0.80 and Q2 = 0.1-190 GeV2. The measured structure function ratios have small statistical and systematic errors, particularly at small and intermediate x. The observed Q2 dependence in the range x = 0.1-0.4 is stronger than predicted by perturbative QCD. From the present data together with results from other experiments it is suggested that the twist-four coefficient for the proton is smaller than that for the neutron for x larger than 0.2.

Place, publisher, year, edition, pages
Elsevier, 1992. Vol. 371, no 1-2, 3-31 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:oru:diva-57748DOI: 10.1016/0550-3213(92)90227-3ISI: A1992HK31400001Scopus ID: 2-s2.0-0001917344OAI: oai:DiVA.org:oru-57748DiVA: diva2:1098195
Available from: 2017-05-23 Created: 2017-05-23 Last updated: 2017-10-18Bibliographically approved

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