Relevant results from the NA48 experiment

TL;DR

The paper reports key findings from the NA48 experiment at CERN, focusing on CP violation in kaon decays and exploring rare decays of $K^0$ and hyperons, advancing understanding of CP symmetry violation.

Contribution

It presents the final results on CP violation and new measurements of rare $K^0$ and hyperon decays from the NA48 experiment, improving precision and scope.

Findings

Final measurement of direct CP violation in $K^0$ decays.

Observation of rare $K^0$ and hyperon decay modes.

Enhanced experimental setup enabling new decay investigations.

Abstract

We report relevant results from NA48 experiment at CERN SPS. NA48 was proposed in 1990 \cite{proposal} to study direct CP violation in $K^0\to\pi\pi$ to a level of accuracy sufficient to resolve the inconclusive status left by the previous measurements performed by NA31 \cite{NA31} and E731 \cite{E731}. In 2002 NA48 published the final result \cite{NA48epsoeps}. Small modification to the experimental setup have allowed NA48 to go forward with an extensive investigation of $K^0$ rare decays and hyperon decays. Some results are already available and reported here together with the final CP violation measurement.