New Measurements of Nucleon Structure Functions from CCFR/NuTeV

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 ccfrcharmdeltaextractionfunctionsmeasurementspredictionsproduction

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We report on the extraction of the structure functions F_2 and Delta xF_3 = xF_3nu-xF_3nub 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. Within 5% the F_2 (PMI) values measured in neutrino and muon scattering are in agreement with the predictions of Next-to-Leading-Order PDFs (using massive charm production schemes), thus resolving the long-standing discrepancy between the two measurements.

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New Measurements of Nucleon Structure Functions from CCFR/NuTeV

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