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arXiv · 1207.2193

Nucleon sea and the five-quark components

Jen-Chieh Peng·Wen-Chen Chang
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Abstract

We generalize the approach of Brodsky {\it et al.} for the intrinsic charm quark distribution in the nucleons to the light-quark sector involving intrinsic $\bar u, \bar d, s$ and $\bar s$ sea quarks. We compare the calculations with the existing $\bar d - \bar u$, $s + \bar s$, and $\bar u + \bar d - s -\bar s$ data. The good agreement between the theory and the data is interpreted as evidence for the existence of the intrinsic light-quark sea in the nucleons. The probabilities for the $|uudu\bar{u}>$, $|uudd\bar{d}>$ and $|uuds\bar{s}>$ Fock states are also extracted.

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Jen-Chieh Peng, Wen-Chen Chang. 2012-07-09. Nucleon sea and the five-quark components. https://arxiv.org/abs/1207.2193

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