Flavor Structure of Intrinsic Nucleon Sea

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

doi:10.1007/s00601-015-0951-6

Flavor Structure of Intrinsic Nucleon Sea

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

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

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 language	English
Pages (from-to)	349-354
Number of pages	6
Journal	Few-Body Systems
Volume	56
Issue number	6-9
DOIs	https://doi.org/10.1007/s00601-015-0951-6
State	Published - Oct 1 2015

Bibliographical note

Publisher Copyright:
© 2015, Springer-Verlag Wien.

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Flavor Structure of Intrinsic Nucleon Sea",

abstract = "The concept of intrinsic charm suggested by Brodsky et al. is extended to lighter quarks. Extraction of the intrinsic ū, {\=d}, and {\=s} seas is obtained from an analysis of the {\=d} − ū, s + {\=s}, and ū + {\=d} − s −{\=s} 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) + {\=d}(x) sea can be separated. The striking x-dependence of the [s(x) + {\=s}(x)]/[ū(x) + {\=d}(x)] ratio is interpreted as an interplay between the connected and disconnected seas.",

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AU - Peng, Jen Chieh

AU - Chang, Wen Chen

AU - Cheng, Hai Yang

AU - Liu, Keh Fei

PY - 2015/10/1

Y1 - 2015/10/1

N2 - 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.

AB - 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.

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JO - Few-Body Systems

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ER -

Flavor Structure of Intrinsic Nucleon Sea

Abstract

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