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Some exact results on CP and CPT violations in a C=−1 entangled pseudoscalar neutral meson pair

Regular Article - Theoretical Physics

Abstract

We consider neutral pseudoscalar mesons in an entangled or Einstein–Podolsky–Rosen state with C=−1. Due to quantum entanglement and antisymmetry of this state, the rates of the joint decays of the meson pair display various interesting features, as is well known. As functions of CP and CPT violating parameters, here we obtain some exact results about the joint decay rates and their asymmetries for a given time difference defined for joint decays to flavor eigenstates, as well as those for joint decays to CP eigenstates. The entanglement allows a meaningful and useful definition of the transition amplitude from a CP eigenstate of a meson. These results yield useful information and criteria on CP and CPT violations.

Keywords

Entangle State Pseudoscalar Meson Joint Rate Neutral Meson Entangle Pair 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

I am grateful to A. Di Domenico and other members of KLOE2, as well as Z. Huang, for useful discussions. This work was supported by the National Science Foundation of China (Grant No. 10875028).

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Copyright information

© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica 2013

Authors and Affiliations

  1. 1.Center for Field Theory and Particle Physics, Department of PhysicsFudan UniversityShanghaiChina

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