Current algebra and the cloudy-bag model

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dc.contributor.authorMorgan, M.A.
dc.contributor.authorMiller, G.A.
dc.contributor.authorThomas, A.W.
dc.date.issued1986
dc.description.abstractTwo 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.
dc.description.statementofresponsibilityM. A. Morgan, G. A. Miller, and A. W. Thomas
dc.identifier.citationPhysical Review D: Particles, Fields, Gravitation and Cosmology, 1986; 33(3):817-829
dc.identifier.doi10.1103/PhysRevD.33.817
dc.identifier.issn0556-2821
dc.identifier.issn1550-2368
dc.identifier.orcidThomas, A.W. [0000-0003-0026-499X]
dc.identifier.urihttp://hdl.handle.net/2440/86636
dc.language.isoen
dc.publisherAmerican Physical Society
dc.rights© 1986 The American Physical Society
dc.source.urihttps://doi.org/10.1103/physrevd.33.817
dc.titleCurrent algebra and the cloudy-bag model
dc.typeJournal article
pubs.publication-statusPublished

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