Chiral Perturbation Theory and the Magnetic Moments of the Baryon Octet
Jun, 197412 pages
Published in:
- Phys.Rev.D 10 (1974) 3739
Report number:
- COO-2232B-60
Citations per year
Abstract: (APS)
We have calculated, exactly to leading order in the chiral perturbation symmetry-breaking parameter ε, the corrections to the Coleman-Glashow SU(3) relations a mong the magnetic moments of the baryon octet. The corrections are of order ε12. In general the corrections turn out to be at least as large as the zeroth-order term and hence the perturbation expansion breaks down. We discuss the reasons for this breakdown. We also derive sum rules which are independent of the leading-order corrections and hence valid to next order in chiral perturbation symmetry breaking, i.e., εlnε.References(19)
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