W-charge asymmetry at CDF, tests of structure functions
Conference
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OSTI ID:10108204
- Univ. of Rochester, NY (United States). Dept. of Physics and Astronomy
The charge asymmetry of W-bosons produced in p{bar p} collisions has been measured using 19,039 W {yields} e{nu} and W {yields} {mu}{nu} decays recorded by the CDF detector during the 1992-93 Tevatron collider run. The asymmetry is sensitive to the slope of the proton`s d/u quark distribution ratio down to x < 0.01 at Q{sup 2} {approx} M{sub W}{sup 2}, where nonperturbative QCD effects are minimal. Of recent parton distribution functions, those of Martin, Roberts and Stirling are favored over those of the CTEQ collaboration. This difference is seen even though both sets agree, at the level of the nuclear shadowing corrections, with the recent NMC measurements of F{sub 2}{sup {mu}n}/F{sub 2}{sup {mu}p}.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 10108204
- Report Number(s):
- FNAL/C-94/337-E; CONF-9407142-6; ON: DE95004855; TRN: 95:001016
- Resource Relation:
- Conference: ICHEP `94,Glasgow (United Kingdom),20-27 Jul 1994; Other Information: PBD: Sep 1994
- Country of Publication:
- United States
- Language:
- English
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