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Hadronic W production and the Gottfried sum rule

M. A. Doncheski* and F. Halzen

C. S. Kim

M. L. Stong†

  • Department of Physics, University of Wisconsin, Madison, Wisconsin 53706

  • Department of Physics, Yonsei University, Seoul 120, Korea

  • Department of Physics, University of Wisconsin, Madison, Wisconsin 53706

  • *Present address: Department of Physics, Carleton University, Ottawa, Ontario K1S-5B6, Canada.
  • †Present address: Institut für Theoretische Teilchen physik, Universität Karlsruhe, D-76128 Karlsruhe, Germany.
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Phys. Rev. D 49, 3261 – Published 1 April, 1994

DOI: https://doi.org/10.1103/PhysRevD.49.3261

Abstract

The difference in production rate between W+ and W− at hadron colliders is very sensitive to the difference between up- and down-quark distributions in the proton. This sensitivity allows for a variety of useful measurements. We consider the difference ds(x,Q2)−us(x,Q2) in the sea distributions and the difference Δu(x,Q2)−Δd(x,Q2) in the polarized parton distribution functions. In both cases we construct an asymmetry to reduce systematic uncertainties. Although we discuss measurements at the Fermilab Tevatron and future hadron colliders, we find that the Brookhaven Relativistic Heavy Ion Collider (RHIC) is the most appropriate hadron collider for these measurements.

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Phys. Rev. D 49, 3261– Published 1 April, 1994
  • Received 18 June 1993

© 1994 American Physical Society

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