Separate T, CP, CPT Asymmetries in Neutral Meson Transitions

5th Symposium on Prospects in the Physics of Discrete Symmetries

Bernabéu, José^1

Departamento de Física Teórica, Universidad de Valencia, IFIC, Joint Centre CSIC-UV, Burjassot

E-46100, Spain^1

关键词: Charge conjugation;    CP violations;    Eigenstate decay;    Hamiltonian dynamics;    Laws of physics;    Quantum field theory;    Symmetry breakings;    The standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/873/1/012001/pdf
DOI  :  10.1088/1742-6596/873/1/012001

来源: IOP

【 摘 要 】

Symmetries, and Symmetry Breakings, in the Laws of Physics play a crucial role in Fundamental Science. Parity and Charge Conjugation Violations prompted the consideration of Chiral Fields in the construction of the Standard Model, whereas CP-Violation needed at least three families of Quarks leading to Flavour Physics. In this Lecture I will discuss the Conceptual Basis and the present experimental results for a Direct Evidence of Separate Reversal-in-Time T, CP and CPT Genuine Asymmetries in Decaying Particles like Neutral Meson Transitions, using Quantum Entanglement and the Decay as a Filtering Measurement. The eight transitions associated to the Flavour-CP eigenstate decay products of entangled neutral mesons have demonstrated with impressive significance a separate evidence of TRV and CPV in Bd-physics, whereas a CPTV asymmetry shows a 2-σ effect interpreted as an upper limit. Novel CPTV observables are discussed for K and Bdtransitions. Their observation would lead to a change of paradigm beyond Quantum Field Theory, however there is nothing in Quantum Mechanics forbidding CPTV. A clean methodology to disentangle CPTV effects in the Hamiltonian dynamics and the ω-effect weakening Entanglement in a given experiment is discussed.