Search

The neutral kaon doublet is one of the most intriguing systems in nature. Entangled pairs of neutral K mesons produced in φ-meson decays offer a unique possibility to perform important tests of fundamental discrete symmetries as well as of basic principles of quantum mechanics. This paper will focus on a novel method to perform direct T and CPT symmetry tests exploiting the Einstein-Podolsky-Rosen correlations of neutral kaon pairs produced at a φ-factory. The statistical significance of the test achievable with the KLOE-2 experiment at DAΦNE, the Frascati φ-factory, is also briefly discussed. [ABSTRACT FROM AUTHOR]

KLOE experiment at the Frascati φ--factory recently obtained results on i) CPT and Lorentz invariance tests from the study of quantum interference of the neutral kaon pairs; ii) precision measurement of the branching fraction, BR(K+ → π+π-π+(γ) ) = 0.05565 ± 0.00031stat ± 0.00025syst, and iii) on dark photon searches with the analysis of the e+e- → μμγ final state. We have also studied the transition form factors of the φ meson to the pseudoscalars, π0 and η, that is presented in a separate contribution to this volume. [ABSTRACT FROM AUTHOR]