Novel T-violation observable open to any decay channel at meson factories

Quantum entanglement between the two neutral mesons produced i n meson factories has allowed the first direct observation of Time Reversal Violation in the time evolution of the B neutral meson between the two decays. The exceptional meson transitions are directly connected to semileptonic and CP eigenstate decay chan nels. The possibility of extending the observable asymmetries to more decay channels confronts the problem of the “orthogonality condition”: Given a decay channel f , which is the decay channel f’ such that the meson state not decaying to f’ is orthogonal t o the meson state not decaying to f ? We have proposed an alternative T - Violation asymmetry at meson factories which allows its opening to any pair of decay channels. Instead of searching which is the pair of dec ay channels associated to the T - reverse meso n transition, we build an asymmetry which tags the initial states of both the Reference and the T - reverse meson transitions. This observable filters the appropriate final states by means of two measurable survival probabilities. We discuss the methodology to be followed in the analysis of the new observable and the results expected in specific examples

entanglement: quantum
time reversal: violation
time reversal: asymmetry
meson: neutral particle
meson: particle source
meson: pair production
BaBar
B0 anti-B0: transition
B0 anti-B0: mixing

References(16)

Figures(0)

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