Hyperon Decays in Chiral Perturbation Theory Revisited

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...

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Bibliographic Details
Published inarXiv.org
Main Author Springer, R P
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 18.08.1995
Subjects
Chiral dynamics
Parameter modification
Perturbation theory
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Summary: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.
ISSN:2331-8422