We study breakdown of CP T symmetry which can occur in the decay process BB → l ± X ∓ f with f being a CP eigenstate. In this process, the standard model expectations for time ordered semi-leptonic and hadronic events, i.e. which of the two decays takes place first, can be altered in the case that there is a violation of the CP T symmetry. To illustrate this possibility, we identify and study several time integrated observables. We find that an experiment with 10 9 BB pairs, has the capability for improving the bound on CP T violating parameter or perhaps observe CP T
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