Recent Results from the KLOE Experiment at DAPHNE

TL;DR

The KLOE experiment at DAPHNE has collected extensive data leading to new measurements of kaon decay branching ratios, charge asymmetries, and phi meson decay properties, enhancing understanding of meson physics.

Contribution

This paper reports new experimental measurements of meson decay processes and ratios, providing updated data and first-time measurements that improve the understanding of meson interactions.

Findings

Measured the branching ratio of Ke3 decay of K_S and its charge asymmetry.

Determined ratios of various meson decay branching ratios, including K_S and K_L decays.

Provided new data on phi meson decay modes and the pseudoscalar mixing angle.

Abstract

Recent results from the KLOE experiment at the DAPHNE e+e- collider are presented. KLOE has collected about 500 pb^-1 of data in the years from 2000 to 2002. Preliminary results are obtained using wide samples of the full statistics and include: the BR of the Ke3 decay of the K_S and the first measurement of its charge asymmetry, the ratio BR(K_S-->pi+pi-(gamma))/BR(K_S-->pi^0pi^0), the ratio BR(K_L-->gammagamma)/BR(K_L-->3pi^0), a detailed study of the decay phi-->pi+pi-pi^0, the ratio BR(phi-->eta' gamma)/BR(phi-->eta gamma) and the pseudoscalar mixing angle phi_P, the phi-->f_0 gamma and the phi-->a_0 gamma BR's.