Hyperon Decays in Chiral Perturbation Theory Revisited

R.P. Springer

Hyperon Decays in Chiral Perturbation Theory Revisited

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arxiv hep-ph/9508324 v1 pith:EBC634XO submitted 1995-08-18 hep-ph

R.P. Springer This is my paper · ORCID

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keywords chiraldecaysfoundhyperonp-waveagreementbaryoncorrelated

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The discrepancies found between S-wave and P-wave fits for hyperon decays are reinvestigated using the heavy baryon chiral Lagrangian formalism. The agreement is found to improve through the inclusion of previously omitted diagrams. The S-waves are unaffected by this, but the P-wave predictions are modified. A correlated fit to the chiral parameters is performed and the results discussed.

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$|\Delta I|=3/2$ non-leptonic hyperon decays in covariant baryon chiral perturbation theory
hep-ph 2026-08 conditional novelty 4.0 of 10

In covariant baryon chiral perturbation theory, decuplet-baryon contributions with the consistent coupling scheme, plus pion loops, most improve the fit to the |ΔI|=3/2 hyperon decay amplitudes.

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