Future Kaon Programs at BNL and FNAL

TL;DR

Future kaon decay experiments at BNL and FNAL aim to precisely measure rare decay modes to improve understanding of the unitarity triangle and test the Standard Model's predictions.

Contribution

This paper discusses upcoming kaon decay programs at BNL and FNAL focusing on measuring rare decay modes to enhance knowledge of the unitarity triangle.

Findings

Observation of charged kaon decay mode by E787 at BNL

Plans for comprehensive measurements of neutral and charged kaon decays

Potential to significantly constrain the unitarity triangle

Abstract

Future kaon decay programs at BNL and FNAL are discussed. The primary focus of these programs is the measurement of the golden modes, the neutral and charged kaon decays to a pion and two neutrinos. The observation of the charged mode by E787 at BNL is the first step in a series of measurements which will completely determine the unitarity triangle within the kaon system.