Tests of structure functions using leptons at CDF: W asymmetry and Drell-Yan production
The charge asymmetry as a function of lepton rapidity, A(y{sub l}), has been measured at {radical}s = 1.8 TeV for {vert_bar}y{sub l}{vert_bar} < 1.8, using the W decays to electrons and muons recorded by CDF during the 1992-1993 run of the Tevatron Collider. The luminosity used, approximately 20 pb{sup {minus}1}, and detector improvements resulted in a seven fold increase in statistics relative to the 1988-1989 data. The increased statistics in the 1992-1993 data allow for discrimination between sets of modern parton distribution functions. The results of this analysis demonstrate the value of collider data in the measurement of the proton`s structure. In addition, the Drell-Yan cross section has been measured using {approximately} 4 pb{sup {minus}1} of dielectron and {approximately} 2.5 pb{sup {minus}1} of dimuon data taken during the 1988-1989 run. These measurements probe the quark distributions to x < 0.01 at high Q{sup 2} where nonperturbative effects are minimal. Studies of Drell-Yan production in the {approximately} 20 pb{sup {minus}1} data from the 1992-1993 run are currently underway.
- 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:
- 10169630
- Report Number(s):
- FNAL/C-94/146-E; CONF-940722-17; ON: DE94015727; TRN: 94:014746
- Resource Relation:
- Conference: 27. international conference on high energy physics,Glasgow (United Kingdom),21-27 Jul 1994; Other Information: PBD: Jun 1994
- Country of Publication:
- United States
- Language:
- English
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