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Possible test for CPT invariance with correlated neutral B decays

K. R. S. Balaji·Wilfried Horn·E. A. Paschos
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Abstract

We study breakdown of $CPT$ symmetry which can occur in the decay process $B \bar B \to l^\pm X^\mp f$ 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 $CPT$ symmetry. To illustrate this possibility, we identify and study several time integrated observables. We find that an experiment with $10^{9}$ $B\bar B$ pairs, has the capability for improving the bound on $CPT$ violating parameter or perhaps observe $CPT$ violation.

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K. R. S. Balaji, Wilfried Horn, E. A. Paschos. 2003-10-25. Possible test for CPT invariance with correlated neutral B decays. https://doi.org/10.1103/physrevd.68.076004

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