研究了混合过程中的T和CPT破坏以及衰变到两个矢量的中性介子的直接和间接CP破坏
Dealing with T and CPT violations in mixing as well as direct and indirect CP violations for neutral mesons decaying to two vectors
摘要：
在考虑中性介子$(P^0 \text{ or } \bar P^0)$衰变为两个矢量粒子的情况下，根据末态极化的微分衰变率可以构造大量的观测量。但这些观测量并不是相互独立的，因为只有少数几个独立的理论参数控制着整个动力学，因此观测量之间存在着各种各样的关系。本文研究了在T和CPT破坏同时存在的情况下，伴随着直接和间接CP破坏的混合中中性介子衰变到两个矢量的观测量的行为。我们用可观测量来表示这一情形的所有14个未知的理论参数，并构造了可观测量之间的34个关系的完整集合，这些关系的违反将意味着某些新物理学的存在，这些新物理学涉及CPT的直接违反。此外，我们还研究了三种特殊情况：a）SM情形，b）SM+直接CP破坏，c）SM + T和CPT混合破坏。
英文摘要：
A large number of observables can be constructed from differential decay rate based on the polarization of final state while considering decay of a neutral meson $(P^0 \text{ or } \bar P^0)$ to two vector particles. But all of these observables are not independent to each other since there are only a few independent theoretical parameters controlling the whole dynamics and therefore various relations among observables emerge. In this paper, we have studied the behaviour of observables for neutral meson decaying to two vectors in presence of T and CPT violations in mixing accompanied by both direct and indirect CP violations. We have expressed all of the fourteen unknown theoretical parameters for this scenario in terms observables only and constructed the complete set of thirty four relations among observables whose violation would signify the existence of some new Physics involving direct violation of CPT. In addition, using this formalism we have studied three special cases too: a) SM scenario, b) SM plus direct CP violation c) SM plus T and CPT violation in mixing.
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