CPT violation in entangled B0-B0bar states and the demise of flavour tagging

Abstract

We discuss the demise of flavour tagging due to the loss of the particle-antiparticle identity of neutral B-mesons in the Einstein-Podolsky-Rosen correlated states. Such a situation occurs in cases where the CPT operator is ill-defined, as happens, for example, in quantum gravity models with induced decoherence in the matter sector. The time evolution of the perturbed B0-B0bar initial state, as produced in B-factories, is sufficient to generate new two-body states. For flavour specific decays at equal times, we discuss two definite tests of the two body entanglement: (i) search for the would-be forbidden B0 B0 and B0bar B0bar states; (ii) deviations from the indistinguishable probability between the permuted states B0bar B0 and B0 B0bar.

12 pages LATEX, one eps figure incorporated

Cited by in corpus (12)

• Intrinsic CPT violation and decoherence for entangled neutral mesons
• CPT Violation and Decoherence in Quantum Gravity
• Decoherence and CPT Violation in a Stringy Model of Space-Time Foam
• $\Delta t$-dependent equal-sign dilepton asymmetry and CPTV effects in the symmetry of the $B^0$--${\bar{B}}^0$ entangled state
• Genuine T, CP, CPT asymmetry parameters for the entangled ${\mathbf{B}}_{\mathbf{d}}$ system
• Quantum gravity phenomenology at the dawn of the multi-messenger era -- A review
• Using time-dependent indirect $CP$ asymmetries to measure $T$ and $CPT$ violation in $B^0$-${\bar{B}}^0$ mixing
• Behaviour of observables for neutral meson decaying to two vectors in the presence of $T$, $CP$ and $CPT$ violation in mixing only
• Dealing with T and CPT violations in mixing as well as direct and indirect CP violations for neutral mesons decaying to two vectors
• CP, T and CPT analyses in EPR - correlated $B^0{\bar{B}}^0$ decays
• CPT Violation: Theory and Phenomenology
• Quantum Gravity, CPT symmetry and Entangled States