Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/86636
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Type: Journal article
Title: Current algebra and the cloudy-bag model
Author: Morgan, M.
Miller, G.
Thomas, A.
Citation: Physical Review D - Particles, Fields, Gravitation, and Cosmology, 1986; 33(3):817-829
Publisher: American Physical Society
Issue Date: 1986
ISSN: 0556-2821
1550-2368
Statement of
Responsibility: 
M. A. Morgan, G. A. Miller, and A. W. Thomas
Abstract: Two versions of the cloudy-bag model (surface and volume coupling) satisfy the commutation relations of current algebra. Perturbation-theory evaluations of various observables are compared for the two treatments. The electromagnetic properties are essentially the same in both versions. The volume-coupling model contains, in lowest order, a pion-quark contact interaction that contributes to the axial-vector current. Including the effect of this term leads to a computed value of gA of about 1.25, if the radius of the nucleon bag is around 1.0 fm.
Rights: © 1986 The American Physical Society
RMID: 0030010312
DOI: 10.1103/PhysRevD.33.817
Appears in Collections:Physics publications

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