K-0 reversible arrow (K)over-bar(0) transitions monitored by strong interactions: a new determination of the K-L-K-S mass difference

摘要

The CPLEAR set-up (modified) has been used to determine the K-L-K-S mass difference by a method where neutral-kaon strangeness oscillations are monitored through kaon strong interactions, rather than semileptonic decays, thus requiring no assumptions on CPT invariance for the decay amplitudes. The result, Deltam = (0.5343 +/- 0.0063(stat) +/- 0.0025(syst)) x 10(10)h/s, provides a valuable input for CPT tests. (C) 2001 Published by Elsevier Science B.V. References: 23