Abstract
We present precise tests of and symmetry based on the full data set of decays collected by the KTeV experiment at Fermi National Accelerator Laboratory during 1996, 1997, and 1999. This data set contains and decays. We measure the direct violation parameter . We find the mass difference and the lifetime . We also measure several parameters that test invariance. We find the difference between the phase of the indirect violation parameter and the superweak phase: . We measure the difference of the relative phases between the violating and conserving decay amplitudes for () and for (): . From these phase measurements, we place a limit on the mass difference between and : at 95% C.L. These results are consistent with those of other experiments, our own earlier measurements, and symmetry.
23 More- Received 5 November 2010
DOI:https://doi.org/10.1103/PhysRevD.83.092001
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