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Seminario 15 junio 11:30h, Violación de CPT

El pasado jueves 15 de junio tuvimos un seminario del ciclo MdM a cargo de D. Jose Bernabeu Alberola, catedratico emerito de Fisica Teorica de la Facultad de Fisicas de U. Valencia, investigador del Instituto de Fisica Corpuscular (IFIC, CSIC-UV) y miembro de la Real Academia de Ciencias de España.

A lo largo de su trayectoria investigadora ha trabajado en varios aspectos de la fisica teorica y en esta ocasion nos hablara de la simetria CPT y de interacciones no invariantes bajo esta combinacion, asi como  medidas experimentales relacionadas. 

Titulo: The conceptual basis for the Time-Reversal violation - and CPTV - with unstable particles

Abstract:  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 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-sigma effect interpreted as an upper limit. 
Novel CPTV observables are discussed for K physics at KLOE-2, including the difference between the semileptonic asymmetries from KL and KS, the ratios of double decay rate Intensities to Flavour-CP eigenstate decay products and the omega-effect. Their observation would lead to a change of paradigm beyond Quantum Field Theory, however there is nothing in Quantum Mechanics forbidding CPTV.