- Conference date: 22-28 May 2000
- Location: Quebec City (Canada)
Measurements of Drell-Yan cross sections from the bombardment of liquid deuterium and hydrogen with an 800 GeV proton beam are reported. The relative cross section directly probes the ratio of anti-down to anti-up quarks in the nucleon sea, while absolute measurement of the deuterium cross section constrain Results are compared with previous experiments and next-to-leading order calculations based on current sets of parton distribution functions.
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