CPT violation and cascade decays - art. no. 056002

In tagged cascade decays of the type P-0((P) over bar(0))-->M-0/(M) over ba r(0)X --> fX there are two complex CPT-violating parameters: one in P-0-(P) over bar(0) mixing, the other one in M-0-(M) over bar(0) mixing. I analyze these decays and find that, in principle, the former parameter can be extr acted from a careful comparison of their time dependences. CPT violation in M-0-(M) over bar(0) mixing, on the other hand, always appears entangled wi th ratios of decay amplitudes and cannot be extracted.