Flavor Structure of Intrinsic Nucleon Sea

Jen-Chieh Peng, Wen Chen Chang, Hai Yang Cheng, Keh Fei Liu

Research output: Contribution to journalArticle

Abstract

The concept of intrinsic charm suggested by Brodsky et al. is extended to lighter quarks. Extraction of the intrinsic ū, d̄, and s̄ seas is obtained from an analysis of the d̄ − ū, s + s̄, and ū + d̄ − s −s̄ distributions. The connection between the intrinsic/extrinsic seas and the connected/disconnected seas in lattice QCD is also examined. It is shown that the connected and disconnected components for the ū(x) + d̄(x) sea can be separated. The striking x-dependence of the [s(x) + s̄(x)]/[ū(x) + d̄(x)] ratio is interpreted as an interplay between the connected and disconnected seas.

Original languageEnglish (US)
Pages (from-to)349-354
Number of pages6
JournalFew-Body Systems
Volume56
Issue number6-9
DOIs
StatePublished - Oct 1 2015

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Peng, J-C., Chang, W. C., Cheng, H. Y., & Liu, K. F. (2015). Flavor Structure of Intrinsic Nucleon Sea. Few-Body Systems, 56(6-9), 349-354. https://doi.org/10.1007/s00601-015-0951-6