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Pion content of the nucleon as seen in the NA51 Drell-Yan experiment

  • Hadron Physics
  • Published:
Zeitschrift für Physik A Hadrons and Nuclei

Abstract

In a recent CERN Drell-Yan experiment the NA51 group found a strong asymmetry of −u and ¯d densities in the proton atx ≌ 0.18. We interpret this result as a confirmation of the pion-induced sea in the nucleon.

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Author information

Authors and Affiliations

  1. Forschungszentrum Jülich, Institut für Kernphysik, D-52425, Jülich, Germany

    H. Holtmann, N. N. Nikolaev & J. Speth

  2. Landau Institute for Theoretical Physics, GSP-1, 117940, ul. Kosygina 2, 117334, Moscow, Russia

    N. N. Nikolaev

  3. Institute of Nuclear Physics, PL-31-342, Kraków, Poland

    A. Szczurek

Authors
  1. H. Holtmann
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  2. N. N. Nikolaev
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  3. J. Speth
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  4. A. Szczurek
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Additional information

Communicated by F. Lenz

This work was supported in part by the Polish grant 2 2409 9102. We are indebted to B. Gibson and J.W. Durst for reading the manuscript and interesting discussion.

This article was processed by the author using the LATEX style filepljour2 from Springer-Verlag.

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Holtmann, H., Nikolaev, N.N., Speth, J. et al. Pion content of the nucleon as seen in the NA51 Drell-Yan experiment. Z. Physik A - Hadrons and Nuclei 353, 411–414 (1996). https://doi.org/10.1007/BF01285152

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  • DOI: https://doi.org/10.1007/BF01285152

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