Extraction of various five-quark components of the nucleons

Wen Chen Chang, Jen Chieh Peng

Research output: Contribution to journalArticlepeer-review


We have generalized the approach of Brodsky et al. for the intrinsic charm quark distribution in the nucleons to the light-quark sector involving intrinsic u-,d-,s and s- sea quarks. We compare the calculations with the existing d--u-, s+s-, and u-+d--s-s- data. The good agreement between the theory and the data allows the extraction of the probabilities for the |uuduu-〉, |uuddd-〉, and |uudss-〉 five-quark Fock states in the proton. We also calculate the x-dependence of the intrinsic charm after taking into consideration the QCD evolution of the intrinsic quark distribution.

Original languageEnglish (US)
Pages (from-to)197-200
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number3
StatePublished - Oct 13 2011


  • Five-quark states
  • Intrinsic sea quark
  • Nucleon structure

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Extraction of various five-quark components of the nucleons'. Together they form a unique fingerprint.

Cite this