Measurements Of F-2 And Xf(3)(V)-Xf(3)(V) From Ccpr V(Mu)-Fe And (V)Over-Bar Mu-Fe Data In A Physics Model-Independent Way

Uk Yang, T Adams, A Alton,Cg Arroyo, S Avvakumov,L De Barbaro,P De Barbaro,Ao Bazarko,Rh Bernstein, A Bodek, T Bolton, J Brau, D Buchholz, H Budd, L Bugel, J Conrad,Rb Drucker,Bt Fleming, Ja Formaggio, R Frey, J Goldman, M Goncharov,Da Harris,Ra Johnson,Jh Kim,Bj King, T Kinnel, S Koutsoliotas,Mj Lamm, W Marsh, D Mason,Ks Mcfarland, C Mcnulty,Sr Mishra, D Naples, P Nienaber, A Romosan,Wk Sakumoto, H Schellman,Fj Sciulli, Wg Seligman,Mh Shaevitz,Wh Smith, P Spentzouris,Eg Stern, N Suwonjandee, A Vaitaitis, M Vakili, J Yu,Gp Zeller,Ed Zimmerman

PHYSICAL REVIEW LETTERS（2001）

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摘要

We report on the extraction of the structure functions F-2 and Delta xF(3) = xF(3)(upsilon) - xF(3)(<()over bar>) from CCFR upsilon (mu)-Fe and <()over bar>(mu)-Fe differential cross sections. The extraction is performed in a physics model-independent (PMI) way. This first measurement of Delta xF(3), which is useful in testing models of heavy charm production, is higher than current theoretical predictions. The ratio of the F-2 (PMI) values measured in upsilon (mu) and mu scattering is in agreement (within 5%) with the predictions of next-to-leading-order parton distribution functions using massive charm production schemes, thus resolving the long-standing discrepancy between the two sets of data.

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