New Measurements of Nucleon Structure Functions from the CCFR/NuTeV Collaboration

A. Bodek , U. K. Yang , T. Adams , A. Alton , C. G. Arroyo , S. Avvakumov , L. de Barbaro , P. de Barbaro

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A. O. Bazarko R. H. Bernstein T. Bolton J. Brau D. Buchholz H. Budd L. Bugel J. Conrad R. B. Drucker B. T. Fleming J. A. Formaggio R. Frey J. Goldman M. Goncharov D. A. Harris R. A. Johnson J. H. Kim B. J. King T. Kinnel S. Koutsoliotas M. J. Lamm W. Marsh D. Mason K. S. McFarland et. al. (The CCFR/NuTeV Collaboration)

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classification ✦ hep-ex

keywords ccfrcharmdeltaextractionfunctionspredictionsproductionstructure

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We report on the extraction of the structure functions F_2 and Delta xF_3 = xF_3nu-xF_3nubar from CCFR neutrino-Fe and antineutrino-Fe differential cross sections. The extraction is performed in a physics model independent (PMI) way. This first measurement for Delta xF_3, which is useful in testing models of heavy charm production, is higher than current theoretical predictions. The F_2 (PMI) values measured in neutrino and muon scattering are in good agreement with the predictions of Next to Leading Order PDFs (using massive charm production schemes), thus resolving the long-standing discrepancy between the two sets of data.

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New Measurements of Nucleon Structure Functions from the CCFR/NuTeV Collaboration

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