Publication Date

1999

Journal or Book Title

EUROPEAN PHYSICAL JOURNAL C

Abstract

The non-leptonic hyperon decays are analyzed up to one-loop order including all counterterms in the framework of heavy baryon chiral perturbation theory. We use the exchange of the spin- decuplet resonances as an indication of which low-energy constants contribute significantly to these investigated processes. We choose four independent decay amplitudes that are not related by isospin relations in order to perform a fit for the pertinent low-energy constants and find a satisfactory fit both for s- and p-waves. The chiral corrections to the lowest order forms for the s-waves are moderate whereas there are significant modifications of the p-wave amplitudes.

Comments

This is the pre-published version which is collected from arXiv. The published version is at http://www.springerlink.com/content/n2n04dupypuc3xjv/

Pages

85-107

Volume

6

Issue

1

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