Extraction of various five-quark components of the nucleons

Wen Chen Chang, Jen Chieh Peng

Research output: Contribution to journalArticle

Abstract

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
Volume704
Issue number3
DOIs
StatePublished - Oct 13 2011

Fingerprint

nucleons
quarks
sectors
quantum chromodynamics
protons

Keywords

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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Extraction of various five-quark components of the nucleons. / Chang, Wen Chen; Peng, Jen Chieh.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 704, No. 3, 13.10.2011, p. 197-200.

Research output: Contribution to journalArticle

@article{526735bcfe2844309adf4eb4e865080c,
title = "Extraction of various five-quark components of the nucleons",
abstract = "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.",
keywords = "Five-quark states, Intrinsic sea quark, Nucleon structure",
author = "Chang, {Wen Chen} and Peng, {Jen Chieh}",
year = "2011",
month = "10",
day = "13",
doi = "10.1016/j.physletb.2011.08.077",
language = "English (US)",
volume = "704",
pages = "197--200",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "3",

}

TY - JOUR

T1 - Extraction of various five-quark components of the nucleons

AU - Chang, Wen Chen

AU - Peng, Jen Chieh

PY - 2011/10/13

Y1 - 2011/10/13

N2 - 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.

AB - 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.

KW - Five-quark states

KW - Intrinsic sea quark

KW - Nucleon structure

UR - http://www.scopus.com/inward/record.url?scp=80053131955&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053131955&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2011.08.077

DO - 10.1016/j.physletb.2011.08.077

M3 - Article

AN - SCOPUS:80053131955

VL - 704

SP - 197

EP - 200

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 3

ER -