Observation of direct CP violation in $K_{S,L} \\to \\pi \\pi$ decays
Journal
Physical Review Letters
Journal Volume
83
Pages
22-27
Date Issued
1999-05
Author(s)
Abstract
We have compared the decay rates of KL and KS toΠ+ Π- Π0Π0 final states using a subset of the data from the KTeV experiment (E832) at Fermilab. We find that the direct-CP-violation parameter Re (μ’/μ) is equal to [28.0±3.0(stat)±2.8(syst)]×10-4. This result definitively establishes the existence of CP violation in a decay process. © 1999 The American Physical Society.
SDGs
Type
journal article