Strong enhancement of epsilon '/epsilon through final state interactions

Thumbnail Image
Files
081675.pdf (122.77 KB)
Identifiers
URI: http://hdl.handle.net/10550/42308
DOI: 10.1103/PhysRevLett.84.2568
Publication date
2000
Reading date
Authors
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
Metrics
Export
DC MarcXML RDF METS
Abstract
We quantify the important effect of strong final state interactions in the weak K --> 2 pi amplitudes, using the measured pi-pi phase shifts with J = 0 and I = 0.2. The final rescattering of the two pions provides a strong enhancement of the Delta I = 1/2 amplitude, which so far has been neglected in the theoretical predictions of epsilon'/epsilon. This correction increases the standard model prediction of epsilon'/epsilon to values in good agreement with the experimental measurements.
Description
Keywords
Física
Bibliographic reference
Pallante, Elisabetta Pich Zardoya, Antonio 2000 Strong enhancement of epsilon '/epsilon through final state interactions Physical Review Letters 84 12 2568 2571
URI
http://hdl.handle.net/10550/42308
Collections
22 - Física