| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10724489 | Physics Letters B | 2008 | 9 Pages |
Abstract
The pion mass difference generates a pronounced cusp in Kâ3Ï decays, the strength of which is related to the ÏÏ S-wave scattering lengths. We apply an effective field theory framework developed earlier to evaluate the amplitudes for KLâ3Ï decays in a systematic manner, where the strictures imposed by analyticity and unitarity are respected automatically. The amplitudes for the decay ηâ3Ï are also given.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
M. Bissegger, A. Fuhrer, J. Gasser, B. Kubis, A. Rusetsky,