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A large number of observables can be constructed from differential decay ratebased on the polarization of final state while considering decay of a neutralmeson $(P^0 \text{ or } \bar P^0)$ to two vector particles. But all of theseobservables are not independent to each other since there are only a fewindependent theoretical parameters controlling the whole dynamics and thereforevarious relations among observables emerge. In this paper, we have studied thebehaviour of observables for neutral meson decaying to two vectors in presenceof T and CPT violations in mixing accompanied by both direct and indirect CPviolations. We have expressed all of the fourteen unknown theoreticalparameters for this scenario in terms observables only and constructed thecomplete set of thirty four relations among observables whose violation wouldsignify the existence of some new Physics involving direct violation of CPT. Inaddition, using this formalism we have studied three special cases too: a) SMscenario, b) SM plus direct CP violation c) SM plus T and CPT violation inmixing.

Dealing with T and CPT violations in mixing as well as direct and indirect CP violations for neutral mesons decaying to two vectors