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

Citation
Uk. Yang et al., 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, PHYS REV L, 86(13), 2001, pp. 2742-2745
Citations number
25
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
86
Issue
13
Year of publication
2001
Pages
2742 - 2745
Database
ISI
SICI code
0031-9007(20010326)86:13<2742:MOFAXF>2.0.ZU;2-1
Abstract
We report on the extraction of the structure functions F-2 and Delta xF(3) = xF(3)(upsilon) - xF(3)(<(<upsilon>)over bar>) from CCFR upsilon (mu)-Fe a nd <(<upsilon>)over bar>(mu)-Fe differential cross sections. The extraction is performed in a physics model-independent (PMI) way. This first measurem ent of Delta xF(3), which is useful in testing models of heavy charm produc tion, is higher than current theoretical predictions. The ratio of the F-2 (PMI) values measured in upsilon (mu) and mu scattering is in agreement (wi thin 5%) with the predictions of next-to-leading-order parton distribution functions using massive charm production schemes, thus resolving the long-s tanding discrepancy between the two sets of data.