Experimental tests of CPT symmetry and quantum mechanics at CPLEAR

We review a phenomenological parametrization of an open quantum-mechanical formalism for CPT violation in the neutral kaon system, and constrain the parameters using fits to recent CPLEAR data.We review a phenomenological parametrization of an open quantum-mechanical formalism for CPT violation in the neutral kaon system, and constrain the parameters using fits to recent CPLEAR data

Experimental tests of CPT symmetry and quantum mechanics at CPLEAR

We review a phenomenological parametrization of an open quantum-mechanical formalism for CPT violation in the neutral kaon system, and constrain the parameters using fits to recent CPLEAR data

A determination of the CP violation parameter η±\eta_{\pm} from the decay of strangeness-tagged neutral kaons

We report a measurement of the CP violation parameter $\eta$ from the time-dependent asymmetry between the decay rates of initially tagged \kn\ and \knb . The results are based on the complete data sample collected by the CPLEAR collaboration. With \dm = (530.1 \pm 1.4) \times 10^{7}\hbar s^{-1} and \ts = (89.32 \pm 0.08) ps, the values obtained are \mita = (2.264 \pm 0.023_\mathrm{{stat}} \pm 0.026_\mathrm{{syst}} \pm 0.007_{\ts}) \times 10^{-3} and \fas = 43.19^{\circ} \pm 0.53^{\circ}_\mathrm{{st at}} \pm 0.28^{\circ}_\mathrm{{syst}} \pm 0.42^{\circ}_{\dm}