The formalism necessary to understand the phenomenon of CP nonconservation as
observed in the neutral-kaon system is presented. The distinction between indirect CP …

We reconsider the model of quantum mechanics violation in the K 0− K 0 system, due to
Ellis, Hagelin, Nanopoulos, and Srednicki, in which CP-and CPT-violating signatures arise …

A bstract We discuss the concepts and methodology to implement an experiment probing
directly Time Reversal (T) non-invariance, without any experimental connection to CP …

We present a novel method to perform a direct T (time reversal) symmetry test in the neutral
kaon system, independent of any CP and/or CPT symmetry tests. This is based on the …

The evolution of quantum irreversible processes can be effectively described using
dynamical semigroups. They involve non-unitary time evolutions of density matrices that are …

Several arguments favour gravitation as the “Master Arrow of Time”. Providing an
explanation in terms of gravitation for the CP (and T) violation observed in the neutral kaon …

The CP violation parameter η+− is determined through the eigentime-dependent asymmetry
in the rates of initially tagged K0 and K 0 decaying to π+ π−. The obtained values are …

The transverse polarization in a plane perpendicular to the nuclear spin axis has been
determined for electrons emitted in the β decay of polarized Li 8. Such a spin component …

Available data on measured observables allow deriving estimates for some of the
phenomenological parameters that characterize the time-evolution and decay of the neutral …

Starting from the time evolution of the C-odd $\bar {K}^ 0 K^ 0$ system, we analyze the
asymmetries measurable at DAFNE and their implications on CP violation and on the …