New measurement of the CP violation parameter eta(+ - gamma)
Journal
Physical Review Letters
Journal Volume
75
Pages
2803-2806
Date Issued
1995
Author(s)
Matthews, John N.
Abstract
We have measured the CP violation parameter +- in a neutral kaon experiment, E773, at Fermilab. This parameter characterizes CP violation in the decay KL+-. Kaon decays into +- collected simultaneously were used for normalization. Our result is |+-|=[2.359 0.062(stat)0.040(syst)]×10-3 with a phase +-=[43.8 3.5(stat)1.9(syst)]°. The prediction that +- should be very close to +- is supported by our result. © 1995 The American Physical Society.
Type
journal article