IMPROVED PARTON DISTRIBUTIONS AND W, Z PRODUCTION AT $p\bar{p}$ COLLIDERS

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Abstract
We obtain improved parton distributions from a structure function analysis which includes new data on deep inelastic scattering and on dilepton production. These lead to improved predictions for σ(W)/σ(Z), which when combined with the forthcoming data from colliders, will give tighter constraints on the values of mt and Ny. We emphasize how new measurements of the W± charge asymmetry may resolve the EMC — BCDMS F2 discrepancy and hence sharpen the prediction for σ(W)/σ(Z) even further.

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