Adelaide Research & Scholarship
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https://hdl.handle.net/2440/86636
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| Type: | Journal article |
| Title: | Current algebra and the cloudy-bag model |
| Author: | Morgan, M.A. Miller, G.A. Thomas, A.W. |
| 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 |
| DOI: | 10.1103/PhysRevD.33.817 |
| Published version: | http://dx.doi.org/10.1103/physrevd.33.817 |
| Appears in Collections: | Aurora harvest 7 Physics publications |
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