Flavor asymmetry of the nucleon sea and the five-quark components of the nucleons

Wen Chen Chang, Jen Chieh Peng

Research output: Contribution to journalArticlepeer-review

Abstract

The existence of the five-quark Fock states for the intrinsic charm quark in the nucleons was suggested some time ago, but conclusive evidence is still lacking. We generalize the previous theoretical approach to the light-quark sector and study possible experimental signatures for such five-quark states. In particular, we compare the d̄-ū and ū+d̄-s-s̄ data with the calculations based on the five-quark Fock states. The qualitative agreement between the data and the calculations is interpreted as evidence for the existence of the intrinsic light-quark sea in the nucleons. The probabilities for the and Fock states are also extracted.

Original languageEnglish (US)
Article number252002
JournalPhysical review letters
Volume106
Issue number25
DOIs
StatePublished - Jun 22 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Flavor asymmetry of the nucleon sea and the five-quark components of the nucleons'. Together they form a unique fingerprint.

Cite this