%0 Journal Article
%T Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment
%A KLOE-2 Collaboration (Babusci, D. et al
%A Bernabeu, J.
%J Physics Letters B
%D 2023
%V 845
%I Elsevier
%@ 0370-2693
%G English
%F KLOE-2CollaborationBabusci+Bernabeu2023
%O WOS:001080223500001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5704), last updated on Wed, 25 Oct 2023 16:36:44 +0000
%X Tests of the T, CP and CPT symmetries in the neutral kaon system are performed by the direct comparison of the probabilities of a kaon transition process to its symmetry-conjugate. The exchange of in and out states required for a genuine test involving an antiunitary transformation implied by time-reversal is implemented exploiting the entanglement of K0K0 pairs produced at a 0 -factory.A data sample collected by the KLOE experiment at DAONE corresponding to an integrated luminosity of about 1.7 fb-1 is analysed to study the At distributions of the 0 -> KSKL -> pi+pi- pi +/- e -/+ v and 0 -> KSKL -> pi +/- e -/+ v3 pi 0 processes, with At the difference of the kaon decay times. A comparison of the measured At distributions in the asymptotic region At ⠅ iS allows to test for the first time T and CPT symmetries in kaon transitions with a precision of few percent, and to observe CP violation with this novel method.
%K Discrete and finite symmetries
%K Kaon physics
%K CP violation
%R 10.1016/j.physletb.2023.138164
%U https://arxiv.org/abs/2211.12377
%U https://doi.org/10.1016/j.physletb.2023.138164
%P 138164 - 11pp