Abstract
Leading non-analytic corrections to hyperon non-leptonic decay amplitudes are calculated in chiral perturbation theory. The success of the Lee-Sugawara relation for S-wave amplitudes is understood in the context of chiral perturbation theory since the chiral logarithmic correction to this relation is small. Although corrections to individual S-wave amplitudes are more sizeable, good agreement with experiment is achieved. P-wave amplitudes are not well-described by the one-loop chiral perturbation theory calculation because the tree-level SU(3) symmetric contribution to these amplitudes is significantly suppressed. This suppression causes SU(3)-violating chiral corrections to dominate the P-wave amplitudes, making an accurate computation of these amplitudes impossible in chiral perturbation theory. The large chiral correction to the P-wave amplitudes does not imply a breakdown of chiral perturbation theory.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
