Nucleon sea and the five-quark components

Jen Chieh Peng, Wen Chen Chang

Research output: Contribution to journalConference articlepeer-review


We generalize the approach of Brodsky et al. for the intrinsic charm quark distribution in the nucleons to the light-quark sector involving intrinsic ū, d̄, s and s̄ sea quarks. We compare the calculations with the existing d̄ - ū, s + s̄, and ū + d̄ - s - s̄ 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 |uuduū⇄, |uuddd̄⇄ and |uudss̄⇄ Fock states are also extracted.

Original languageEnglish (US)
JournalProceedings of Science
StatePublished - 2012
Event6th International Conference on Quarks and Nuclear Physics, QNP 2012 - Palaiseau, Paris, France
Duration: Apr 16 2012Apr 20 2012

ASJC Scopus subject areas

  • General


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