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Title: On the momentum dependence of the flavor structure of the nucleon sea

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL)
Sponsoring Org.:
USDOE SC OFFICE OF SCIENCE (SC)
OSTI Identifier:
1174097
Report Number(s):
BNL-107269-2014-JA
KB0301020
DOE Contract Number:
DE-SC00112704
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics Letters B
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Peng J., Qiu J., Chang, w, Cheng, H, Hou, T, and Liu, K. On the momentum dependence of the flavor structure of the nucleon sea. United States: N. p., 2014. Web. doi:10.1016/j.physletb.2014.07.050.
Peng J., Qiu J., Chang, w, Cheng, H, Hou, T, & Liu, K. On the momentum dependence of the flavor structure of the nucleon sea. United States. doi:10.1016/j.physletb.2014.07.050.
Peng J., Qiu J., Chang, w, Cheng, H, Hou, T, and Liu, K. Mon . "On the momentum dependence of the flavor structure of the nucleon sea". United States. doi:10.1016/j.physletb.2014.07.050.
@article{osti_1174097,
title = {On the momentum dependence of the flavor structure of the nucleon sea},
author = {Peng J. and Qiu J. and Chang, w and Cheng, H and Hou, T and Liu, K},
abstractNote = {},
doi = {10.1016/j.physletb.2014.07.050},
journal = {Physics Letters B},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 2014},
month = {Mon Sep 01 00:00:00 EDT 2014}
}
  • Cited by 42
  • By making full use of the advantage of the chiral quark soliton model, we investigate the flavor structure of the sea-quark components in the nucleon. First, through the analysis of the charge distributions of the proton and neutron, we demonstrate that the effect of sea quarks incorporated in this model can be identified with that of the cloud of pions surrounding the core of three valence quarks. Next, not only the integrated value but also the spatial structure of the {ital q{bar q}} scalar condensate in the nucleon is studied with emphasis upon the separate functions of the valence andmore » sea quarks. The enhancement of the {ital {bar d}d} scalar condensate relative to the {ital {bar u}u} one in the proton is shown to be consistent with QCD phenomenology. We have also carried out a theoretical analysis of the Gottfried sum on the basis of the chiral quark soliton model and obtained a satisfactory agreement with the recent New Muon Collaboration measurement.« less
  • Specific helicity and flavor structure of zero modes of quarks in instanton field allows simultaneously to explain the breaking of both Ellis-Jaffe and Gottfried sum rules. From the analysis of the recent CCFR Collaboration data for the structure function {ital xF}{sub 3}({ital x},{ital Q}{sup 2}) of the deep inelastic neutrino-nucleon scattering we conclude that Gross-Llewellyn sum rule is probably violated by the QCD vacuum polarization effects. {copyright} {ital 1995 American Institute of Physics.}
  • We reexamine the effects of antisymmetry on the antiquarks in the nucleon sea arising from gluon exchange and pion exchange between confined quarks. While the effect is primarily to suppress down relative to up antiquarks, this is numerically insignificant for the pion terms. {copyright} {ital 1997} {ital The American Physical Society}