scholarly journals Recent results on Direct CP Violation and charged kaon decays with the NA48/2 experiment

2007 ◽  
Author(s):  
Gianluca Lamanna
Keyword(s):  
Cp Violation ◽  
Charged Kaon ◽  
Kaon Decays

scholarly journals Direct CP violation and the ΔI = 1/2 rule in K → ππ decay in the Standard Model

2022 ◽  
Vol 258 ◽  
pp. 01003
Author(s):  
Christopher Kelly
Keyword(s):  
Cp Violation ◽  
Standard Model ◽  
Systematic Error ◽  
Error Estimates ◽  
Lattice Calculation ◽  
Kaon Decays ◽  
The Standard Model

We discuss the RBC & UKQCD collaborations’ recent [1] lattice calculation of ϵ′, the measure of direct CP-violation in kaon decays. This result significantly improves on our previous 2015 calculation, with nearly 4× the statistics and more reliable systematic error estimates. We discuss how our results demonstrate the Standard Model origin of the ΔI = 1/2 rule, and present our plans for future calculations.

Measurement of the CP-Violation Parameterη+−γin Neutral Kaon Decays

1993 ◽  
Vol 70 (17) ◽  
pp. 2529-2532 ◽  
Author(s):  
E. J. Ramberg ◽  
G. J. Bock ◽  
R. Coleman ◽  
J. Enagonio ◽  
Y. B. Hsiung ◽  
...  
Keyword(s):  
Cp Violation ◽  
Neutral Kaon ◽  
Kaon Decays

scholarly journals Limits on Heavy Neutrinos at NA48/2 and NA62

2018 ◽  
Vol 46 ◽  
pp. 1860043
Author(s):  
Lubos Bician
Keyword(s):  
Data Analysis ◽  
Heavy Neutrino ◽  
Charged Kaon ◽  
Kaon Decays ◽  
Large Samples ◽  
Neutrino Production ◽  
Upper Limits

Large samples of charged kaon decays have been collected by the NA48/2 (2003-2004), the NA62-R[Formula: see text] (2007) and the NA62 (2015) experiments at CERN SPS. This proceedings summarizes upper limits on heavy neutrino production measured by these experiments. The results from the 2015 data analysis at the NA62 experiment are preliminary.

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