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Pion Content of the Nucleon as seen in the NA51 Drell-Yan experiment

H. Holtmann·N. N. Nikolaev·J. Speth·A. Szczurek
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Abstract

In a recent CERN Drell-Yan experiment the NA51 group found a strong asymmetry of $\bar u$ and $\bar d$ densities in the proton at $x\simeq0.18$. We interpret this result as a decisive confirmation of the pion-induced sea in the nucleon.

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H. Holtmann, N. N. Nikolaev, J. Speth, A. Szczurek. 1994-05-16. Pion Content of the Nucleon as seen in the NA51 Drell-Yan experiment. https://doi.org/10.1007/bf01285152

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