Experimental test of the drell-yan model in p+W→μ++μ-+X

S. R. Smith, S. Childress, P. M. Mockett, J. P. Rutherfoord, R. W. Williams, H. R. Gustafson, L. W. Jones, M. J. Longo, T. J. Roberts, M. R. Whalley, D. A. Garelick, P. S. Gauthier, M. J. Glaubman, H. Johnstad, M. L. Mallary, J. Moromisato, E. Pothier, E. Von Goeler, W. P. Oliver

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We report a high-statistics study of the reaction p+W→μ++μ-+X with use of an intense 400-GeV/c proton beam, a magnetized-iron beam dump, and a wide-acceptance detector. Using data near xF=0, we have extracted the nucleon sea-quark distribution and find it to be a factor 1.6±0.3 larger than that obtained by inelastic charged-current neutrino scattering. We then compare the Drell-Yan prediction with our data including the previously unexplored region of large xF and find excellent agreement for a wide range of μ-pair invariant mass.

Original languageEnglish (US)
Pages (from-to)1607-1610
Number of pages4
JournalPhysical review letters
Issue number25
StatePublished - 1981

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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