Kaon physics with the KLOE detector

TL;DR

This paper reports on recent KLOE experiment analyses including tests of fundamental symmetries and precise measurements of kaon decay properties, advancing understanding in kaon physics and CPT invariance.

Contribution

It presents new experimental results on CPT and Lorentz invariance tests, decay branching fractions, and ongoing mass measurements in kaon physics.

Findings

CPT and Lorentz invariance tests with entangled kaon pairs

Precise measurement of the ${K^+} ightarrow \pi^+\pi^-\pi^+(\gamma)$ branching fraction

Ongoing analysis of the $K^{\pm}$ mass

Abstract

In this paper we discuss the recent finalized analyses by the KLOE experiment at DA$\Phi$NE: the CPT and Lorentz invariance test with entangled $K^0 \bar{K}^0$ pairs, and the precision measurement of the branching fraction of the decay ${ K^+} \rightarrow \pi^+\pi^-\pi^+(\gamma)$. We also present the status of an ongoing analysis aiming to precisely measure the $K^{\pm} $ mass.