1208.0773 (J. Bernabeu et al.)

Direct test of time-reversal symmetry in the entangled neutral kaon
system at a φ-factory    [PDF]

J. Bernabeu, A. Di Domenico, P. Villanueva-Perez

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 comparison of suitable transition probabilities, where the required interchange of in <-> out states for a given process is obtained exploiting the Einstein-Podolsky-Rosen correlations of neutral kaon pairs produced at a \phi-factory. In the time distribution between the two decays, we compare a reference transition like the one defined by the time ordered decays (l^-,\pi\pi) with the T -conjugated one defined by (3\pi^0, l^+). With the use of this and other T conjugated comparisons, the KLOE-2 experiment at DAFNE could make a significant test.

View original: http://arxiv.org/abs/1208.0773