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Type: Journal article
Title: Chiral symmetry and the intrinsic structure of the nucleon
Author: Leinweber, D.
Thomas, A.
Young, R.
Citation: Physical Review Letters, 2001; 86(22):5011-5014
Publisher: American Physical Soc
Issue Date: 2001
ISSN: 0031-9007
Organisation: Centre for the Sub-Atomic Structure of Matter (CSSM)
Statement of
D. B. Leinweber, A. W. Thomas, and R. D. Young
Abstract: Understanding hadron structure within the framework of QCD is an extremely challenging problem. In order to solve it, it is vital that our thinking should be guided by the best available insight. Our purpose here is to explain the model-independent consequences of the approximate chiral symmetry of QCD for two famous results concerning the structure of the nucleon. We show that both the apparent success of the constituent quark model in reproducing the ratio of the proton to neutron magnetic moments and the apparent success of the Foldy term in reproducing the observed charge radius of the neutron are coincidental. That is, a relatively small change of the current quark mass would spoil both results.
Rights: ©2001 American Physical Society
DOI: 10.1103/PhysRevLett.86.5011
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Special Research Centre for the Subatomic Structure of Matter publications

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