New Mesurements Of Nucleon Structure Functions From Ccfr/Nutev

A Bodek,U K Yang,T Adams,A Alton,C G Arroyo,S Avvakumov,L De Barbaro,A O Bazarko,R H Bernstein, T Boltoen,J Brau, D Buchholz,H S Budd,L Bugel,J Conrad,R B Drucker,B T Fleming, J A Formaggio,R Frey, Joel C Goldman,M Goncharov,D A Harris,R A Johnson,Joo Hee Kim,B J King,T Kinnel, S Koutsoliotas,M J Lamm,W Marsh,Dean T Mason,K S Mcfarland,C Mcnulty,S R Mishra,D Naples,Narumon Suwonjandee,P Nienaber,A Romoson,W K Sakumoto,H Schellman, F Sciulli,W G Seligman,M H Shaevitz,W H Smith,P Spentzouris,E G Stern, M Vakili,A Vaitaitis,Jiaming Yu,G P Zeller, E D Zimmerman

INTERNATIONAL JOURNAL OF MODERN PHYSICS A（2001）

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摘要

We report on the extraction of the structure functions F-2 and DeltaxF(3) = xF(3)(nu) - xF(3)((ν) over bar) from CCFR nu(mu)-Fe and (ν) over bar (mu)-Fe differential cross sections. The extraction is performed in a physics model independent (PMI) way. This first measurement for DeltaxF(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 nu(mu), and mu 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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physical model,cross section,structure function

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